Pipfile.lock contains \u0000 characters and installation fails

[BramVanroy]

Issue description

Installing a pipenv based on a requirements.txt file (below) in Python 3.6.4 (also tried 3.6.7) on Windows 10 64x fails. Upon investigation it seems something goes wrong with the hashes where the first hash is a sequence of \u0000.

Expected result

A successful installation.

Actual result

Traceback (most recent call last):
  File "c:\users\bram\.virtualenvs\udacity-pytorch-b_zpv5sl\lib\site-packages\pip\_internal\cli\base_command.py", line 143, in main
    status = self.run(options, args)
  File "c:\users\bram\.virtualenvs\udacity-pytorch-b_zpv5sl\lib\site-packages\pip\_internal\commands\install.py", line 293, in run
    self.name, wheel_cache
  File "c:\users\bram\.virtualenvs\udacity-pytorch-b_zpv5sl\lib\site-packages\pip\_internal\cli\base_command.py", line 235, in populate_requirement_set
    wheel_cache=wheel_cache):
  File "c:\users\bram\.virtualenvs\udacity-pytorch-b_zpv5sl\lib\site-packages\pip\_internal\req\req_file.py", line 91, in parse_requirements
    for req in req_iter:
  File "c:\users\bram\.virtualenvs\udacity-pytorch-b_zpv5sl\lib\site-packages\pip\_internal\req\req_file.py", line 139, in process_line
    opts, _ = parser.parse_args(shlex.split(options_str), defaults)
  File "C:\Python\Python36\Lib\optparse.py", line 1387, in parse_args
    stop = self._process_args(largs, rargs, values)
  File "C:\Python\Python36\Lib\optparse.py", line 1427, in _process_args
    self._process_long_opt(rargs, values)
  File "C:\Python\Python36\Lib\optparse.py", line 1501, in _process_long_opt
    option.process(opt, value, values, self)
  File "C:\Python\Python36\Lib\optparse.py", line 785, in process
    self.action, self.dest, opt, value, values, parser)
  File "C:\Python\Python36\Lib\optparse.py", line 805, in take_action
    self.callback(self, opt, value, parser, *args, **kwargs)
  File "c:\users\bram\.virtualenvs\udacity-pytorch-b_zpv5sl\lib\site-packages\pip\_internal\cli\cmdoptions.py", line 642, in _merge_hash
    opt_str)
  File "C:\Python\Python36\Lib\optparse.py", line 1569, in error
    self.exit(2, "%s: error: %s\n" % (self.get_prog_name(), msg))
  File "c:\users\bram\.virtualenvs\udacity-pytorch-b_zpv5sl\lib\site-packages\pip\_internal\req\req_file.py", line 257, in parser_exit
    raise RequirementsFileParseError(msg)
pip._internal.exceptions.RequirementsFileParseError: Invalid requirement: kiwisolver==1.0.1 --hash=                                                                        --hash=sha256:0ee4ed8b3ae8f5f712b0aa9ebd2858b5b232f1b9a96b0943dceb34df2a223bc3 --hash=sha256:0f7f532f3c94e99545a29f4c3f05637f4d2713e7fd91b4dd8abfc18340b86cd5 --hash=sha256:1a078f5dd7e99317098f0e0d490257fd0349d79363e8c923d5bb76428f318421 --hash=sha256:1aa0b55a0eb1bd3fa82e704f44fb8f16e26702af1a073cc5030eea399e617b56 --hash=sha256:2874060b91e131ceeff00574b7c2140749c9355817a4ed498e82a4ffa308ecbc --hash=sha256:379d97783ba8d2934d52221c833407f20ca287b36d949b4bba6c75274bcf6363 --hash=sha256:3b791ddf2aefc56382aadc26ea5b352e86a2921e4e85c31c1f770f527eb06ce4 --hash=sha256:4329008a167fac233e398e8a600d1b91539dc33c5a3eadee84c0d4b04d4494fa --hash=sha256:79e5fe3ccd5144ae80777e12973027bd2f4f5e3ae8eb286cabe787bed9780138 --hash=sha256:8b6a7b596ce1d2a6d93c3562f1178ebd3b7bb445b3b0dd33b09f9255e312a965 --hash=sha256:9576cb63897fbfa69df60f994082c3f4b8e6adb49cccb60efb2a80a208e6f996 --hash=sha256:95a25d9f3449046ecbe9065be8f8380c03c56081bc5d41fe0fb964aaa30b2195 --hash=sha256:aaec1cfd94f4f3e9a25e144d5b0ed1eb8a9596ec36d7318a504d813412563a85 --hash=sha256:e0f910f84b35c36a3513b96d816e6442ae138862257ae18a0019d2fc67b041dc --hash=sha256:ea36e19ac0a483eea239320aef0bd40702404ff8c7e42179a2d9d36c5afcb55c --hash=sha256:f923406e6b32c86309261b8195e24e18b6a8801df0cfc7814ac44017bfcb3939
pip: error: Arguments to --hash must be a hash name followed by a value, like --hash=sha256:abcde...

When investigating the Pipfile.lock, I found that the first hash is just a sequence of \u0000 (full file below in the logs):

"kiwisolver": {
            "hashes": [
                "\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000",
                "sha256:0ee4ed8b3ae8f5f712b0aa9ebd2858b5b232f1b9a96b0943dceb34df2a223bc3",
                "sha256:0f7f532f3c94e99545a29f4c3f05637f4d2713e7fd91b4dd8abfc18340b86cd5",
                 ...
            ]
}

Trying pipenv lock --clear did not solve the issue. This also happened with the packages pandocfilters and send2trash. I even tried a full Python reinstallation.

Steps to replicate

Using Python 3.6.4 as a base, install the following requirements.txt file:

opencv-python
jupyter
matplotlib
pandas
numpy
pillow
scipy
tqdm
scikit-learn
scikit-image
seaborn
h5py
ipykernel
bokeh
pickleshare

---

$ pipenv --support

Pipenv version: '2018.11.26'

Pipenv location: 'c:\\python\\python36\\lib\\site-packages\\pipenv'

Python location: 'c:\\python\\python36\\python.exe'

Python installations found:

• 3.6.4: C:\Python\Python36\python.exe
• 2.7: C:\Python\Python27\python.exe

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '3.6.4',
 'os_name': 'nt',
 'platform_machine': 'AMD64',
 'platform_python_implementation': 'CPython',
 'platform_release': '10',
 'platform_system': 'Windows',
 'platform_version': '10.0.17134',
 'python_full_version': '3.6.4',
 'python_version': '3.6',
 'sys_platform': 'win32'}

System environment variables:

• ALLUSERSPROFILE
• APPDATA
• COMMONPROGRAMFILES
• COMMONPROGRAMFILES(X86)
• COMMONPROGRAMW6432
• COMPUTERNAME
• COMSPEC
• CUDA_PATH
• CUDA_PATH_V9_2
• DRIVERDATA
• FPS_BROWSER_APP_PROFILE_STRING
• FPS_BROWSER_USER_PROFILE_STRING
• HOMEDRIVE
• HOMEPATH
• LOCALAPPDATA
• LOGONSERVER
• NUMBER_OF_PROCESSORS
• NVCUDASAMPLES9_2_ROOT
• NVCUDASAMPLES_ROOT
• NVTOOLSEXT_PATH
• ONEDRIVE
• OS
• PATH
• PATHEXT
• PROCESSOR_ARCHITECTURE
• PROCESSOR_IDENTIFIER
• PROCESSOR_LEVEL
• PROCESSOR_REVISION
• PROGRAMDATA
• PROGRAMFILES
• PROGRAMFILES(X86)
• PROGRAMW6432
• PROMPT
• PSMODULEPATH
• PUBLIC
• SESSIONNAME
• SYSTEMDRIVE
• SYSTEMROOT
• TEMP
• TMP
• USERDOMAIN
• USERDOMAIN_ROAMINGPROFILE
• USERNAME
• USERPROFILE
• WINDIR
• PIP_DISABLE_PIP_VERSION_CHECK
• PYTHONDONTWRITEBYTECODE
• PIP_SHIMS_BASE_MODULE
• PIP_PYTHON_PATH
• PYTHONFINDER_IGNORE_UNSUPPORTED

Pipenvûspecific environment variables:

Debugûspecific environment variables:

• PATH: C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.2\bin;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.2\libnvvp;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\Git\cmd;C:\Program Files\nodejs\;C:\Perl\c\bin;C:\Perl\perl\site\bin;C:\Perl\perl\bin;C:\Program Files\PuTTY\;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\Python\Python36\Scripts\;C:\Python\Python36\;C:\Users\Bram\AppData\Local\Microsoft\WindowsApps;C:\Users\Bram\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\Bram\AppData\Roaming\npm;C:\Users\Bram\AppData\Local\GitHubDesktop\bin;

---

Contents of Pipfile ('C:\Python\projects\udacity-pytorch\Pipfile'):

[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[packages]
opencv-python = "*"
jupyter = "*"
matplotlib = "*"
pandas = "*"
numpy = "*"
scipy = "*"
tqdm = "*"
scikit-learn = "*"
scikit-image = "*"
seaborn = "*"
"h5py" = "*"
ipykernel = "*"
bokeh = "*"
pickleshare = "*"
Pillow = "*"

[dev-packages]

[requires]
python_version = "3.6"

Contents of Pipfile.lock ('C:\Python\projects\udacity-pytorch\Pipfile.lock'):

{
    "_meta": {
        "hash": {
            "sha256": "360fca444e166c2a7e0513f0a93ea84fda5723e73506a377e1b079f597c3e4f5"
        },
        "pipfile-spec": 6,
        "requires": {
            "python_version": "3.6"
        },
        "sources": [
            {
                "name": "pypi",
                "url": "https://pypi.org/simple",
                "verify_ssl": true
            }
        ]
    },
    "default": {
        "backcall": {
            "hashes": [
                "sha256:38ecd85be2c1e78f77fd91700c76e14667dc21e2713b63876c0eb901196e01e4",
                "sha256:bbbf4b1e5cd2bdb08f915895b51081c041bac22394fdfcfdfbe9f14b77c08bf2"
            ],
            "version": "==0.1.0"
        },
        "bleach": {
            "hashes": [
                "sha256:48d39675b80a75f6d1c3bdbffec791cf0bbbab665cf01e20da701c77de278718",
                "sha256:73d26f018af5d5adcdabf5c1c974add4361a9c76af215fe32fdec8a6fc5fb9b9"
            ],
            "version": "==3.0.2"
        },
        "bokeh": {
            "hashes": [
                "sha256:3c030598d55115c714af4f843403370b9138a15834835a48bd1fcfd905fd2c1f"
            ],
            "index": "pypi",
            "version": "==1.0.2"
        },
        "cloudpickle": {
            "hashes": [
                "sha256:f169a8523a40eb0a3452e1878aac31da6759409fbafa51dd50d89d4a6b42bcf1",
                "sha256:fac8deaad55cd9e6cc11bb1d61c66da730f3f602ea8433698ef10ce664e520ec"
            ],
            "version": "==0.6.1"
        },
        "colorama": {
            "hashes": [
                "sha256:05eed71e2e327246ad6b38c540c4a3117230b19679b875190486ddd2d721422d",
                "sha256:f8ac84de7840f5b9c4e3347b3c1eaa50f7e49c2b07596221daec5edaabbd7c48"
            ],
            "markers": "sys_platform == 'win32'",
            "version": "==0.4.1"
        },
        "cycler": {
            "hashes": [
                "sha256:1d8a5ae1ff6c5cf9b93e8811e581232ad8920aeec647c37316ceac982b08cb2d",
                "sha256:cd7b2d1018258d7247a71425e9f26463dfb444d411c39569972f4ce586b0c9d8"
            ],
            "version": "==0.10.0"
        },
        "dask": {
            "extras": [
                "array"
            ],
            "hashes": [
                "sha256:8a2c151d5862627c71fdc725760d710b7c037ec57730f453f392b896febfd0d5",
                "sha256:a1fa4a3b2d7ce4dd0c68db4b68dadf2c283ff54d98bd72c556fc462000449ff7"
            ],
            "version": "==1.0.0"
        },
        "decorator": {
            "hashes": [
                "sha256:2c51dff8ef3c447388fe5e4453d24a2bf128d3a4c32af3fabef1f01c6851ab82",
                "sha256:c39efa13fbdeb4506c476c9b3babf6a718da943dab7811c206005a4a956c080c"
            ],
            "version": "==4.3.0"
        },
        "defusedxml": {
            "hashes": [
                "sha256:24d7f2f94f7f3cb6061acb215685e5125fbcdc40a857eff9de22518820b0a4f4",
                "sha256:702a91ade2968a82beb0db1e0766a6a273f33d4616a6ce8cde475d8e09853b20"
            ],
            "version": "==0.5.0"
        },
        "entrypoints": {
            "hashes": [
                "sha256:10ad569bb245e7e2ba425285b9fa3e8178a0dc92fc53b1e1c553805e15a8825b",
                "sha256:d2d587dde06f99545fb13a383d2cd336a8ff1f359c5839ce3a64c917d10c029f"
            ],
            "version": "==0.2.3"
        },
        "h5py": {
            "hashes": [
                "sha256:0f8cd2acbacf3177b4427ed42639c911667b1f24d923388ab1f8ad466a12be5e",
                "sha256:11277e3879098f921ee9e29105b20591e1dfdd44963357399f2abaa1a280c560",
                "sha256:1241dec0c94ac32f3285cac1d6f44beabf80423e422ab03bd2686d731a8a9294",
                "sha256:17b8187de0b3a945d8e8d031e7eb6ece2fce90791f9c5fde36f4396bf38fdde1",
                "sha256:2f30007d0796788a454c1293262f19f25e6428317d3d386f78138fba2a44e37d",
                "sha256:308e0758587ee16d4e73e7f2f8aae8351091e343bf0a43d2f697f9535465c816",
                "sha256:37cacddf0e8209905f52537a8cf71da0dd9a4de62bd79247274c97b24a408997",
                "sha256:38a23bb599748adf23d77f74885c0de6f4a7d9baa42f74e476bbf90fba2b47dd",
                "sha256:47ab18b7b7bbc36fd2b606289b703b6f0ee915b923d6ad94dd17ac80ebffc280",
                "sha256:486c78330af0bf33f5077b51d1888c0739c3cd1a03d5aade0d48572b3b5690ca",
                "sha256:4e2183458d6ef1ae87dfb5d6acd0786359336cd9ac0ece6396c09b59fdaa3bd6",
                "sha256:51d0595c3e58814c831f6cd2b664a5bf9590e26262c1d541b380d041e4fcb3c0",
                "sha256:56d259d56822b70881760b243957f04a0cf133f0ec65eae6a33f562826aee899",
                "sha256:5e6e777653169a3cc24ea56bb3d8c845ea391f8914c35bb6f350b0753a52891c",
                "sha256:62bfb0ebb0f59e5dccc0b0dbbc0fc40dd1d1e09d04c0dc71f89790231531d4a2",
                "sha256:67d89b64debfa021b54aa6f24bbf008403bd144748a0148596b518bce80d2fc4",
                "sha256:6bf38571f555fa214493ec6349d29024cc5f313bf1715b09f236c553fd22ae4d",
                "sha256:9214ca445c18a37bfe9c165982c0e317e2f21f035c8d635d1c6d9fcbaf35b7a8",
                "sha256:ab0c52850428d2e86029935389379c2c97f752e76b616da851deec8a4484f8ec",
                "sha256:b2eff336697d8dfd712c5d93fef9f4e4d3e97d9d8c258801836b8664a239e07a",
                "sha256:bb33fabc0b8f3fe3bb0f8d6821b2fad5b2a64c27a0808e8d1c5c1e3362062064",
                "sha256:bd5353ab342bae1262b04745934cc1565df4cbc8d6a979a0c98f42209bd5c265",
                "sha256:bd73444efd1ac06dac27b8405bbe8791a02fd1bc8a2fa0e575257f90b7b57467",
                "sha256:bd932236a2ef91a75fee5d7f4ace80ab494c5a59cd092a67c9785ddb7fdc218c",
                "sha256:c45650de228ace7731e4280e14fb687f6d5c29cd666c5b22b42492b035e994d6",
                "sha256:d5c0c01da45f901a3d429e7ef9e7e22baa869e1affb8715f1bf94e6a30020740",
                "sha256:d75035db5bde802a29f4f29f18bb7548863d29ac90ccbf2c04c11799bbbba2c3",
                "sha256:dda88206dc9464923f27f601000bc5b152ac0bd6d0122f098d4f239150a70076",
                "sha256:e1c2ac5d0aa232c0f60fecc6bd1122346885086a176f939b91058c4c980cc226",
                "sha256:e626c65a8587921ebc7fb8d31a49addfdd0b9a9aa96315ea484c09803337b955"
            ],
            "index": "pypi",
            "version": "==2.8.0"
        },
        "ipykernel": {
            "hashes": [
                "sha256:0aeb7ec277ac42cc2b59ae3d08b10909b2ec161dc6908096210527162b53675d",
                "sha256:0fc0bf97920d454102168ec2008620066878848fcfca06c22b669696212e292f"
            ],
            "index": "pypi",
            "version": "==5.1.0"
        },
        "ipython": {
            "hashes": [
                "sha256:6a9496209b76463f1dec126ab928919aaf1f55b38beb9219af3fe202f6bbdd12",
                "sha256:f69932b1e806b38a7818d9a1e918e5821b685715040b48e59c657b3c7961b742"
            ],
            "markers": "python_version >= '3.3'",
            "version": "==7.2.0"
        },
        "ipython-genutils": {
            "hashes": [
                "sha256:72dd37233799e619666c9f639a9da83c34013a73e8bbc79a7a6348d93c61fab8",
                "sha256:eb2e116e75ecef9d4d228fdc66af54269afa26ab4463042e33785b887c628ba8"
            ],
            "version": "==0.2.0"
        },
        "ipywidgets": {
            "hashes": [
                "sha256:0f2b5cde9f272cb49d52f3f0889fdd1a7ae1e74f37b48dac35a83152780d2b7b",
                "sha256:a3e224f430163f767047ab9a042fc55adbcab0c24bbe6cf9f306c4f89fdf0ba3"
            ],
            "version": "==7.4.2"
        },
        "jedi": {
            "hashes": [
                "sha256:0191c447165f798e6a730285f2eee783fff81b0d3df261945ecb80983b5c3ca7",
                "sha256:b7493f73a2febe0dc33d51c99b474547f7f6c0b2c8fb2b21f453eef204c12148"
            ],
            "version": "==0.13.1"
        },
        "jinja2": {
            "hashes": [
                "sha256:74c935a1b8bb9a3947c50a54766a969d4846290e1e788ea44c1392163723c3bd",
                "sha256:f84be1bb0040caca4cea721fcbbbbd61f9be9464ca236387158b0feea01914a4"
            ],
            "version": "==2.10"
        },
        "jsonschema": {
            "hashes": [
                "sha256:000e68abd33c972a5248544925a0cae7d1125f9bf6c58280d37546b946769a08",
                "sha256:6ff5f3180870836cae40f06fa10419f557208175f13ad7bc26caa77beb1f6e02"
            ],
            "version": "==2.6.0"
        },
        "jupyter": {
            "hashes": [
                "sha256:3e1f86076bbb7c8c207829390305a2b1fe836d471ed54be66a3b8c41e7f46cc7",
                "sha256:5b290f93b98ffbc21c0c7e749f054b3267782166d72fa5e3ed1ed4eaf34a2b78",
                "sha256:d9dc4b3318f310e34c82951ea5d6683f67bed7def4b259fafbfe4f1beb1d8e5f"
            ],
            "index": "pypi",
            "version": "==1.0.0"
        },
        "jupyter-client": {
            "hashes": [
                "sha256:27befcf0446b01e29853014d6a902dd101ad7d7f94e2252b1adca17c3466b761",
                "sha256:59e6d791e22a8002ad0e80b78c6fd6deecab4f9e1b1aa1a22f4213de271b29ea"
            ],
            "version": "==5.2.3"
        },
        "jupyter-console": {
            "hashes": [
                "sha256:308ce876354924fb6c540b41d5d6d08acfc946984bf0c97777c1ddcb42e0b2f5",
                "sha256:cc80a97a5c389cbd30252ffb5ce7cefd4b66bde98219edd16bf5cb6f84bb3568"
            ],
            "version": "==6.0.0"
        },
        "jupyter-core": {
            "hashes": [
                "sha256:927d713ffa616ea11972534411544589976b2493fc7e09ad946e010aa7eb9970",
                "sha256:ba70754aa680300306c699790128f6fbd8c306ee5927976cbe48adacf240c0b7"
            ],
            "version": "==4.4.0"
        },
        "kiwisolver": {
            "hashes": [
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                "sha256:0ee4ed8b3ae8f5f712b0aa9ebd2858b5b232f1b9a96b0943dceb34df2a223bc3",
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                "sha256:08237eda23fd8e4e54838258b124f1cd141379a5f281b0a234ca99b38918c07a",
                "sha256:0e645dbfc03f279e1946cf07c9c754c2a1859cb4a41c5f70b25f6b3a586b6dbd",
                "sha256:0e9bb7efe5f051ea7212555b290e784b82f21ffd0f655405ac4f87e288b730b3",
                "sha256:108c16640849e5827e7d51023efb3bd79244098c3f21e4897a1007720cb7ce37",
                "sha256:340ef70f5b0f4e2b4b43c8c8061165911bc6b2ad16f8de85d9774545e2c47463",
                "sha256:3ad73dfc6f82e494195144bd3a129c7241e761179b7cb5c07b9a0ede99c686f3",
                "sha256:3b243c77a822cd034dad53058d7c2abf80062aa6f4a32e9799c95d6391558631",
                "sha256:404a00314e85eca9d46b80929571b938e97a143b4f2ddc2b2b3c91a4c4ead9c5",
                "sha256:423b3ff76957d29d1cce1bc0d62ebaf9a3fdfaf62344e3fdec14619bb7b5ad3a",
                "sha256:42d9149a2fff7affdd352d157fa5717033767857c11bd55aa4a519a44343dfef",
                "sha256:625f25a6b7d795e8830cb70439453c9f163e6870e710ec99eba5722775b318f3",
                "sha256:698c6409da58686f2df3d6f815491fd5b4c2de6817a45379517c92366eea208f",
                "sha256:729f8f8363d32cebcb946de278324ab43d28096f36593be6281ca1ee86ce6559",
                "sha256:8190770146a4c8ed5d330d5b5ad1c76251c63349d25c96b3094875b930c44692",
                "sha256:878352408424dffaa695ffedf2f9f92844e116686923ed9aa8626fc30d32cfd1",
                "sha256:8b984f0821577d889f3c7ca8445564175fb4ac7c7f9659b7c60bef95b2b70e76",
                "sha256:8f841bbc21d3dad2111a94c490fb0a591b8612ffea86b8e5571746ae76a3deac",
                "sha256:c22b27371b3866c92796e5d7907e914f0e58a36d3222c5d436ddd3f0e354227a",
                "sha256:d0cdd5658b49a722783b8b4f61a6f1f9c75042d0e29a30ccb6cacc9b25f6d9e2",
                "sha256:d40dc7f494b06dcee0d303e51a00451b2da6119acbeaccf8369f2d29e28917ac",
                "sha256:d8491d4784aceb1f100ddb8e31239c54e4afab8d607928a9f7ef2469ec35ae01",
                "sha256:dfc5080c38dde3f43d8fbb9c0539a7839683475226cf83e4b24363b227dfe552",
                "sha256:e24e22c8d98d3c704bb3410bce9b69e122a8de487ad3dbfe9985d154e5c03a40",
                "sha256:e7a01e53163818d56eabddcafdc2090e9daba178aad05516b20c6591c4811020",
                "sha256:ee677635393414930541a096fc8e61634304bb0153e4e02b75685b11eba14cae",
                "sha256:f0521af1b722265d824d6ad055acfe9bd3341765735c44b5a4d0069e189a0f40",
                "sha256:f25c281f12c0da726c6ed00535ca5d1622ec755c30a3f8eafef26cf43fede694"
            ],
            "index": "pypi",
            "version": "==1.1.0"
        },
        "seaborn": {
            "hashes": [
                "sha256:42e627b24e849c2d3bbfd059e00005f6afbc4a76e4895baf44ae23fe8a4b09a5",
                "sha256:76c83f794ca320fb6b23a7c6192d5e185a5fcf4758966a0c0a54baee46d41e2f"
            ],
            "index": "pypi",
            "version": "==0.9.0"
        },
        "send2trash": {
            "hashes": [
                "\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000"
            ],
            "version": "==1.5.0"
        },
        "six": {
            "hashes": [
                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
            ],
            "version": "==1.11.0"
        },
        "terminado": {
            "hashes": [
                "sha256:55abf9ade563b8f9be1f34e4233c7b7bde726059947a593322e8a553cc4c067a",
                "sha256:65011551baff97f5414c67018e908110693143cfbaeb16831b743fe7cad8b927"
            ],
            "version": "==0.8.1"
        },
        "testpath": {
            "hashes": [
                "sha256:46c89ebb683f473ffe2aab0ed9f12581d4d078308a3cb3765d79c6b2317b0109",
                "sha256:b694b3d9288dbd81685c5d2e7140b81365d46c29f5db4bc659de5aa6b98780f8"
            ],
            "version": "==0.4.2"
        },
        "toolz": {
            "hashes": [
                "sha256:929f0a7ea7f61c178bd951bdae93920515d3fbdbafc8e6caf82d752b9b3b31c9"
            ],
            "version": "==0.9.0"
        },
        "tornado": {
            "hashes": [
                "sha256:0662d28b1ca9f67108c7e3b77afabfb9c7e87bde174fbda78186ecedc2499a9d",
                "sha256:4e5158d97583502a7e2739951553cbd88a72076f152b4b11b64b9a10c4c49409",
                "sha256:732e836008c708de2e89a31cb2fa6c0e5a70cb60492bee6f1ea1047500feaf7f",
                "sha256:8154ec22c450df4e06b35f131adc4f2f3a12ec85981a203301d310abf580500f",
                "sha256:8e9d728c4579682e837c92fdd98036bd5cdefa1da2aaf6acf26947e6dd0c01c5",
                "sha256:d4b3e5329f572f055b587efc57d29bd051589fb5a43ec8898c77a47ec2fa2bbb",
                "sha256:e5f2585afccbff22390cddac29849df463b252b711aa2ce7c5f3f342a5b3b444"
            ],
            "version": "==5.1.1"
        },
        "tqdm": {
            "hashes": [
                "sha256:3c4d4a5a41ef162dd61f1edb86b0e1c7859054ab656b2e7c7b77e7fbf6d9f392",
                "sha256:5b4d5549984503050883bc126280b386f5f4ca87e6c023c5d015655ad75bdebb"
            ],
            "index": "pypi",
            "version": "==4.28.1"
        },
        "traitlets": {
            "hashes": [
                "sha256:9c4bd2d267b7153df9152698efb1050a5d84982d3384a37b2c1f7723ba3e7835",
                "sha256:c6cb5e6f57c5a9bdaa40fa71ce7b4af30298fbab9ece9815b5d995ab6217c7d9"
            ],
            "version": "==4.3.2"
        },
        "wcwidth": {
            "hashes": [
                "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e",
                "sha256:f4ebe71925af7b40a864553f761ed559b43544f8f71746c2d756c7fe788ade7c"
            ],
            "version": "==0.1.7"
        },
        "webencodings": {
            "hashes": [
                "sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78",
                "sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923"
            ],
            "version": "==0.5.1"
        },
        "widgetsnbextension": {
            "hashes": [
                "sha256:14b2c65f9940c9a7d3b70adbe713dbd38b5ec69724eebaba034d1036cf3d4740",
                "sha256:fa618be8435447a017fd1bf2c7ae922d0428056cfc7449f7a8641edf76b48265"
            ],
            "version": "==3.4.2"
        }
    },
    "develop": {}
}

[frostming]

It's weird that i can't reproduce it.

Can you provide the output of pipenv-resolver -v --clear kiwisolver?

[BramVanroy]

Sure.

RESULTS:
[{"version": "1.0.1", "hashes": ["\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000", "sha256:0ee4ed8b3ae8f5f712b0aa9ebd2858b5b232f1b9a96b0943dceb34df2a223bc3", "sha256:0f7f532f3c94e99545a29f4c3f05637f4d2713e7fd91b4dd8abfc18340b86cd5", "sha256:1a078f5dd7e99317098f0e0d490257fd0349d79363e8c923d5bb76428f318421", "sha256:1aa0b55a0eb1bd3fa82e704f44fb8f16e26702af1a073cc5030eea399e617b56", "sha256:2874060b91e131ceeff00574b7c2140749c9355817a4ed498e82a4ffa308ecbc", "sha256:379d97783ba8d2934d52221c833407f20ca287b36d949b4bba6c75274bcf6363", "sha256:3b791ddf2aefc56382aadc26ea5b352e86a2921e4e85c31c1f770f527eb06ce4", "sha256:4329008a167fac233e398e8a600d1b91539dc33c5a3eadee84c0d4b04d4494fa", "sha256:79e5fe3ccd5144ae80777e12973027bd2f4f5e3ae8eb286cabe787bed9780138", "sha256:8b6a7b596ce1d2a6d93c3562f1178ebd3b7bb445b3b0dd33b09f9255e312a965", "sha256:9576cb63897fbfa69df60f994082c3f4b8e6adb49cccb60efb2a80a208e6f996", "sha256:95a25d9f3449046ecbe9065be8f8380c03c56081bc5d41fe0fb964aaa30b2195", "sha256:aaec1cfd94f4f3e9a25e144d5b0ed1eb8a9596ec36d7318a504d813412563a85", "sha256:e0f910f84b35c36a3513b96d816e6442ae138862257ae18a0019d2fc67b041dc", "sha256:ea36e19ac0a483eea239320aef0bd40702404ff8c7e42179a2d9d36c5afcb55c", "sha256:f923406e6b32c86309261b8195e24e18b6a8801df0cfc7814ac44017bfcb3939"], "name": "kiwisolver"}]

[techalchemy]

Was this running in cmd or powershell or something else? Can you try setting PYTHONIOENCODING="utf-8"?

[BramVanroy]

I tried Git bash, Powershell, and cmd.exe. All the same issue.

I set PYTHONIOENCODING in the system's variables, I assume that's what you meant? Still the same issue though.

[techalchemy]

@BramVanroy can you run chcp from the command line, no arguments, and share the output?

[BramVanroy]

@BramVanroy can you run chcp from the command line, no arguments, and share the output?

Both for Powershell and CMD I get

Active code page: 850

But to be honest I have no idea what that means.

[nkabram]

I'm also having this issue. I create a fresh virtual environment using python 3.6 under Anaconda distribution, latest version of pipenv, and then when I try to install django I get the similar result when attempting:

pipenv install django

I get the following error:

Installing django…
Adding django to Pipfile's [packages]…
Installation Succeeded
Installing dependencies from Pipfile.lock (43fed2)…
An error occurred while installing pytz==2018.9 --hash=                                                                       ! Will try again.
  ================================ 2/2 - 00:00:01
Installing initially failed dependencies…
[pipenv.exceptions.InstallError]:   File "c:\programdata\anaconda3\lib\site-packages\pipenv\core.py", line 1992, in do_install
[pipenv.exceptions.InstallError]:       skip_lock=skip_lock,
[pipenv.exceptions.InstallError]:   File "c:\programdata\anaconda3\lib\site-packages\pipenv\core.py", line 1253, in do_init
[pipenv.exceptions.InstallError]:       pypi_mirror=pypi_mirror,
[pipenv.exceptions.InstallError]:   File "c:\programdata\anaconda3\lib\site-packages\pipenv\core.py", line 859, in do_install_dependencies
[pipenv.exceptions.InstallError]:       retry_list, procs, failed_deps_queue, requirements_dir, **install_kwargs
[pipenv.exceptions.InstallError]:   File "c:\programdata\anaconda3\lib\site-packages\pipenv\core.py", line 763, in batch_install
[pipenv.exceptions.InstallError]:       _cleanup_procs(procs, not blocking, failed_deps_queue, retry=retry)
[pipenv.exceptions.InstallError]:   File "c:\programdata\anaconda3\lib\site-packages\pipenv\core.py", line 681, in _cleanup_procs
[pipenv.exceptions.InstallError]:       raise exceptions.InstallError(c.dep.name, extra=err_lines)
[pipenv.exceptions.InstallError]: []
[pipenv.exceptions.InstallError]: ['Usage: pip [options]', '', 'Invalid requirement: pytz==2018.9 --hash=\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', 'pip: error: Arguments to --hash must be a hash name followed by a value, like --hash=sha256:abcde...']
ERROR: ERROR: Package installation failed...
     ================================ 0/1 - 00:00:00

after doing so, I get an error installing pytz package dependency due to an incorrect has value, inspecting the hash in the pipfile lock and it's the following:

"\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000".

I've tried all the same things.

Have you figured this out since your last posting?

[BramVanroy]

@nkabram No, I never found a fix for this, unfortunately. It is a very prominent issue especially when installing files from URLs rather than PyPi. (E.g. CUDA specific versions of a package such as torch.)

[BramVanroy]

From what I have tested, #3298 fixes this. I tried this on two different Windows 10 machines with Python 3.6 and 3.7, installing the requirements.txt from the OP as well as installing other hardware-specific packages and that seems to work fine now. (Locking is still very slow, though.)

Side note: I think that in-between when the problem first started (OP) and today, I may have updated pip. In any case, the issue seems solved for pip 19.0.3 and pipenv 2018.11.27.dev0.

Trace:

PS C:\Python\test> pipenv install --python 3.6
Creating a virtualenv for this project…
Pipfile: C:\Python\test\Pipfile
Using C:/Python/Python36/python.exe (3.6.4) to create virtualenv…
[    ] Creating virtual environment...Using base prefix 'C:\\Python\\Python36'
New python executable in C:\Users\bmvroy\.virtualenvs\test-53IxblZ9\Scripts\python.exe
Installing setuptools, pip, wheel...done.
Running virtualenv with interpreter C:/Python/Python36/python.exe

Successfully created virtual environment!
Virtualenv location: C:\Users\bmvroy\.virtualenvs\test-53IxblZ9
requirements.txt found, instead of Pipfile! Converting…
Success!
Warning: Your Pipfile now contains pinned versions, if your requirements.txt did.
We recommend updating your Pipfile to specify the "*" version, instead.
Pipfile.lock not found, creating…
Locking [dev-packages] dependencies…
Locking [packages] dependencies…
 Locking...
Resolving dependencies...
Success!
Updated Pipfile.lock (c3e4f5)!
Installing dependencies from Pipfile.lock (c3e4f5)…
An error occurred while installing networkx==2.2 --hash=sha256:45e56f7ab6fe81652fb4bc9f44faddb0e9025f469f602df14e3b2551c2ea5c8b! Will try again.
  ================================ 66/66 - 00:02:37
Installing initially failed dependencies…
     ================================ 1/1 - 00:00:25
To activate this project's virtualenv, run pipenv shell.
Alternatively, run a command inside the virtualenv with pipenv run.

[webartoli]

A colleague of mine is hitting the same issue simply installing flask with pipenv on windows.

pipenv install flask

but no errors happens on my computer (with the same hardware, same environment)

We both have pip-19.1.1 and pipenv-2018.11.26 (lastest on pypy).

There is a release plan for a fixed version of pipenv ?

[BramVanroy]

A colleague of mine is hitting the same issue simply installing flask with pipenv on windows.

pipenv install flask

but no errors happens on my computer (with the same hardware, same environment)

We both have pip-19.1.1 and pipenv-2018.11.26 (lastest on pypy).

There is a release plan for a fixed version of pipenv ?

Are you also on Windows? Is the default encoding the same for both systems? I have a feeling that this can be the issue.

As you can see in the post before yours, the problem was fixed in a recent branch ere on Github. Pypi lags behind a bit, so try installing from source.

[webartoli]

We are both on windows, and we have the same default encoding on Windows Os and Python.

Windows

> [System.Text.Encoding]::Default

IsSingleByte      : True
BodyName          : iso-8859-1
EncodingName      : Western European (Windows)
HeaderName        : Windows-1252
WebName           : Windows-1252
WindowsCodePage   : 1252
IsBrowserDisplay  : True
IsBrowserSave     : True
IsMailNewsDisplay : True
IsMailNewsSave    : True
EncoderFallback   : System.Text.InternalEncoderBestFitFallback
DecoderFallback   : System.Text.InternalDecoderBestFitFallback
IsReadOnly        : True
CodePage          : 1252

Python

import sys
sys.getdefaultencoding()

returns

utf-8

In the next days we will try to install pipenv from source in the host that is showing the issue

[webartoli]

Installing pipenv from source I'm hitting different problem.

PS D:\Users\user_name\Desktop\test_issue_3357> pipenv install

Creating a virtualenv for this project…
Pipfile: D:\Users\user_name\Desktop\test_issue_3357\Pipfile
Using D:/dev-env/pyenv/pyenv-win/versions/3.7.2/python.exe (3.7.2) to create virtualenv…
[=   ] Creating virtual environment...Using base prefix 'D:\\dev-env\\pyenv\\pyenv-win\\versions\\3.7.2'
New python executable in D:\Users\user_name\Desktop\test_issue_3357\.venv\Scripts\python.exe
Installing setuptools, pip, wheel...
done.
Running virtualenv with interpreter D:/dev-env/pyenv/pyenv-win/versions/3.7.2/python.exe
Successfully created virtual environment!
Virtualenv location: D:\Users\user_name\Desktop\test_issue_3357\.venv
Creating a Pipfile for this project…
Traceback (most recent call last):
  File "D:\dev-env\pyenv\pyenv-win\versions\3.7.2\Scripts\pipenv-script.py", line 11, in 
    load_entry_point('pipenv==2018.11.27.dev0', 'console_scripts', 'pipenv')()
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\click\core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\click\core.py", line 717, in main
    rv = self.invoke(ctx)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\click\core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\click\core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\click\core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\click\decorators.py", line 64, in new_func
    return ctx.invoke(f, obj, *args, **kwargs)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\click\core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\click\decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\cli\command.py", line 251, in install
    editable_packages=state.installstate.editables,
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\core.py", line 1921, in do_install
    pypi_mirror=pypi_mirror,
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\core.py", line 598, in ensure_project
    validate=validate, skip_requirements=skip_requirements, system=system
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\core.py", line 306, in ensure_pipfile
    project.create_pipfile(python=python)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\project.py", line 709, in create_pipfile
    required_python = self.which("python", self.virtualenv_location)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\project.py", line 1078, in which
    result = next(iter(filter(None, (find(finder) for finder in self.finders))), None)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\project.py", line 1078, in 
    result = next(iter(filter(None, (find(finder) for finder in self.finders))), None)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\pythonfinder\pythonfinder.py", line 133, in which
    return self.system_path.which(exe)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\pythonfinder\models\path.py", line 486, in which
    return next(iter(f for f in filtered if f is not None), None)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\pythonfinder\models\path.py", line 486, in 
    return next(iter(f for f in filtered if f is not None), None)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\pythonfinder\models\path.py", line 485, in 
    filtered = (sub_which(self.get_path(k)) for k in self.path_order)
  File "C:\Users\user_name\AppData\Roaming\Python\Python37\site-packages\pipenv\vendor\pythonfinder\models\path.py", line 441, in get_path
    raise ValueError("Path not found or generated: {0!r}".format(path))
ValueError: Path not found or generated: WindowsPath('d:/users/user_name/desktop/test_issue_3357/.venv/scripts')

[Alan-Solitar]

Same issue here trying to install beautifulsoup4 on wsl

[simongoricar]

This issue is still present. Happens when installing certifi==2019.11.28, h11==0.8.1 and a bunch of other dependencies (I couldn't pinpoint the problem to a single one, leading me to believe pipenv is the problem here). All of them follow the same pattern in Pipfile.lock:

...
"hashes": [
    "\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000"
],
...

Gist with my Pipfile and Pipfile.lock: gist
Deleting and recreating the virtualenv doesn't help.

[matteius]

While we no longer support 3.6 python -- is there anything here that still requires following up on?

[BramVanroy]

@matteius I haven't encountered this issue in a very long time, so closing it. Thanks.