pipenv clean is not working

[frostming]

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Issue description

Run pipenv clean on a project with deps not specified in Pipfile.lock, nothing happens

Expected result

The dependencies should be removed from virtualenv

Actual result

Nothing happens

Steps to replicate

Provide the steps to replicate (which usually at least includes the commands and the Pipfile).

$ pipenv install requests
$ pipenv run pip install flake8    # flake8 is not included in Pipfile
$ pipenv clean
# No output
$ pipenv graph
flake8==3.6.0
  - mccabe [required: >=0.6.0,<0.7.0, installed: 0.6.1]
  - pycodestyle [required: >=2.4.0,<2.5.0, installed: 2.4.0]
  - pyflakes [required: >=2.0.0,<2.1.0, installed: 2.0.0]
  - setuptools [required: >=30, installed: 40.4.3]
requests==2.20.0
  - certifi [required: >=2017.4.17, installed: 2018.10.15]
  - chardet [required: >=3.0.2,<3.1.0, installed: 3.0.4]
  - idna [required: >=2.5,<2.8, installed: 2.7]
  - urllib3 [required: >=1.21.1,<1.25, installed: 1.24]

---

Please run $ pipenv --support, and paste the results here. Don't put backticks (`) around it! The output already contains Markdown formatting.

If you're on macOS, run the following:

$ pipenv --support | pbcopy

If you're on Windows, run the following:

> pipenv --support | clip

If you're on Linux, run the following:

$ pipenv --support | xclip

$ pipenv --support

Pipenv version: '2018.10.13'

Pipenv location: 'c:\\users\\frostming\\.local\\venvs\\pipenv\\lib\\site-packages\\pipenv'

Python location: 'c:\\users\\frostming\\.local\\venvs\\pipenv\\scripts\\python.exe'

Python installations found:

• 3.7.0: D:\Programs\Python\Python37-32\python.exe
• 2.7: D:\Programs\Python\Python27\python.exe

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '3.7.0',
 'os_name': 'nt',
 'platform_machine': 'AMD64',
 'platform_python_implementation': 'CPython',
 'platform_release': '10',
 'platform_system': 'Windows',
 'platform_version': '10.0.15063',
 'python_full_version': '3.7.0',
 'python_version': '3.7',
 'sys_platform': 'win32'}

System environment variables:

• ALLUSERSPROFILE
• APPDATA
• COMMONPROGRAMFILES
• COMMONPROGRAMFILES(X86)
• COMMONPROGRAMW6432
• COMPUTERNAME
• COMSPEC
• HOMEDRIVE
• HOMEPATH
• HTTPS_PROXY
• JAVA_HOME
• LOCALAPPDATA
• LOGONSERVER
• NUMBER_OF_PROCESSORS
• ONEDRIVE
• OS
• PATH
• PATHEXT
• PROCESSOR_ARCHITECTURE
• PROCESSOR_ARCHITEW6432
• PROCESSOR_IDENTIFIER
• PROCESSOR_LEVEL
• PROCESSOR_REVISION
• PROGRAMDATA
• PROGRAMFILES
• PROGRAMFILES(X86)
• PROGRAMW6432
• PROMPT
• PSMODULEPATH
• PUBLIC
• SESSIONNAME
• SYSTEMDRIVE
• SYSTEMROOT
• TEMP
• TMP
• USERDNSDOMAIN
• USERDOMAIN
• USERDOMAIN_ROAMINGPROFILE
• USERNAME
• USERPROFILE
• WINDIR
• LANG
• TERM
• COLORTERM
• TERM_PROGRAM
• TERM_PROGRAM_VERSION
• PYTHONDONTWRITEBYTECODE
• PIP_SHIMS_BASE_MODULE
• PIP_PYTHON_PATH

Pipenv–specific environment variables:

Debug–specific environment variables:

• PATH: C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;D:\Programs\Git\cmd;D:\Programs\TortoiseSVN\bin;D:\Programs\Gpg4win\..\GnuPG\bin;D:\Programs\nodejs\;D:\Programs\Python\Python37-32\Scripts\;D:\Programs\Python\Python37-32\;C:\Users\frostming\AppData\Local\Microsoft\WindowsApps;C:\Users\frostming\.local\bin;D:\Programs\Microsoft VS Code\bin;C:\Users\frostming\AppData\Roaming\npm;C:\Users\frostming\AppData\Local\Yarn\bin;D:\Programs\GnuWin32\bin;D:\Programs\heroku\bin;C:\Users\frostming\AppData\Local\hyper\app-2.0.0\resources\bin;D:\Programs\Java\apache-maven-3.2.5\bin;
• LANG: zh_CN.UTF-8

---

Contents of Pipfile ('D:\Workspace\tempenv\Pipfile'):

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

[packages]
requests = "*"

[dev-packages]

Contents of Pipfile.lock ('D:\Workspace\tempenv\Pipfile.lock'):

{
    "_meta": {
        "hash": {
            "sha256": "70e8bf6bc774f5ca177467cab4e67d4264d0536857993326abc13ff43063bec0"
        },
        "pipfile-spec": 6,
        "requires": {},
        "sources": [
            {
                "name": "pypi",
                "url": "https://pypi.org/simple",
                "verify_ssl": true
            }
        ]
    },
    "default": {
        "certifi": {
            "hashes": [
                "sha256:339dc09518b07e2fa7eda5450740925974815557727d6bd35d319c1524a04a4c",
                "sha256:6d58c986d22b038c8c0df30d639f23a3e6d172a05c3583e766f4c0b785c0986a"
            ],
            "version": "==2018.10.15"
        },
        "chardet": {
            "hashes": [
                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
            ],
            "version": "==3.0.4"
        },
        "idna": {
            "hashes": [
                "sha256:156a6814fb5ac1fc6850fb002e0852d56c0c8d2531923a51032d1b70760e186e",
                "sha256:684a38a6f903c1d71d6d5fac066b58d7768af4de2b832e426ec79c30daa94a16"
            ],
            "version": "==2.7"
        },
        "requests": {
            "hashes": [
                "sha256:99dcfdaaeb17caf6e526f32b6a7b780461512ab3f1d992187801694cba42770c",
                "sha256:a84b8c9ab6239b578f22d1c21d51b696dcfe004032bb80ea832398d6909d7279"
            ],
            "index": "pypi",
            "version": "==2.20.0"
        },
        "urllib3": {
            "hashes": [
                "sha256:41c3db2fc01e5b907288010dec72f9d0a74e37d6994e6eb56849f59fea2265ae",
                "sha256:8819bba37a02d143296a4d032373c4dd4aca11f6d4c9973335ca75f9c8475f59"
            ],
            "version": "==1.24"
        }
    },
    "develop": {}
}

[frostming]

No sure if it is only me that has this issue, I will go deep into the source code later today.

[frostming]

It's related to Windows path normalization.

Can we convert the path all lowercased for Windows? Any concern?

[frostming]

Just come out of a better solution than lowercase the path crudely.

[techalchemy]

makes sense because we needed to keep them not lowercased for legacy reasons (for virtualenv discovery for people who started using pipenv before we normalized properly)

so it's not finding your virtualenv, basically?

[frostming]

@techalchemy No, virtualenv finding is working correctly, but the paths of working set is all lowercased on Windows. It fails to tell whether the installed package is in my virtualenv.
https://github.com/pypa/pipenv/blob/master/pipenv/project.py#L315