Session file with cookie cannot be parsed

[caofanCPU]

Checklist

• [Y] I've searched for similar issues.

• [Y] I'm using the the latest version of HTTPie.

• httpie version, 2.4.0

• python version, 3.9

I prepared the my-session-cookie.json file, the request parameters are placed in query.json, and the expected response results are placed in the result.json file.

my-session-cookie.json like this:
{ "__meta__": { "about": "HTTPie session file", "help": "https://httpie.org/doc#sessions", "httpie": "2.4.0" }, "headers": { "Content-Type": "application/json", "cookie": "12345" } }

And command like this:

http --verify=no -v --session-read-only=~/Desktop/my-session-cookie.json POST http://localhost:8301/test < ~/Desktop/query.json -d >>~/Desktop/result.json

And I got error like this:
http: error: RuntimeError: OrderedDict mutated during iteration

Then I did some test and the request can be executed

• remove cookie field
• OR remove -d >>~/Desktop/result.json in the command

So what's wrong？

[BoboTiG]

Could you rerun the command with --debug and copy-paste the whole output (not a screenshot)?
Also, remove the >>~/Desktop/result.json part to have the output displayed in the terminal.

[BoboTiG]

What is the content of query.json?

[caofanCPU]

@BoboTiG
Just a normal json data like this:

{
  "data": {
    
  },
  "pageNum": 1,
  "pageSize": 100
}

[caofanCPU]

Sry, I missed this msg.
In debug mode:

CASE 1:

http --debug  --verify=no -v  --session-read-only=~/Desktop/my-session-cookie.json POST http://localhost:8301/test < ~/Desktop/query.json -d >>~/Desktop/result.json`

HTTPie 2.4.0
Requests 2.25.1
Pygments 2.7.4
Python 3.9.5 (default, May  4 2021, 03:33:11)
[Clang 12.0.0 (clang-1200.0.32.29)]
/usr/local/Cellar/httpie/2.4.0/libexec/bin/python3.9
Darwin 19.6.0

<Environment {'colors': 256,
 'config': {'default_options': []},
 'config_dir': PosixPath('/Users/bytedance/.config/httpie'),
 'devnull': <property object at 0x1025e11d0>,
 'is_windows': False,
 'log_error': <function Environment.log_error at 0x1025dde50>,
 'program_name': 'http',
 'stderr': <_io.TextIOWrapper name='<stderr>' mode='w' encoding='utf-8'>,
 'stderr_isatty': True,
 'stdin': <_io.TextIOWrapper name='<stdin>' mode='r' encoding='utf-8'>,
 'stdin_encoding': 'utf-8',
 'stdin_isatty': False,
 'stdout': <_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>,
 'stdout_encoding': 'utf-8',
 'stdout_isatty': False}>

**http: error: RuntimeError: OrderedDict mutated during iteration**

Traceback (most recent call last):
  File "/usr/local/bin/http", line 33, in <module>
    sys.exit(load_entry_point('httpie==2.4.0', 'console_scripts', 'http')())
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/httpie/__main__.py", line 11, in main
    exit_status = main()
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/httpie/core.py", line 70, in main
    exit_status = program(
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/httpie/core.py", line 169, in program
    for message in messages:
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/httpie/client.py", line 63, in collect_messages
    httpie_session.update_headers(request_kwargs['headers'])
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/httpie/sessions.py", line 75, in update_headers
    for name, value in request_headers.items():
  File "/usr/local/Cellar/python@3.9/3.9.5/Frameworks/Python.framework/Versions/3.9/lib/python3.9/_collections_abc.py", line 849, in __iter__
    for key in self._mapping:
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/requests/structures.py", line 60, in <genexpr>
    return (casedkey for casedkey, mappedvalue in self._store.values())
RuntimeError: OrderedDict mutated during iteration

CASE 2:

http --debug  --verify=no -v  --session-read-only=~/Desktop/my-session-cookie.json POST http://localhost:8301/test < ~/Desktop/query.json`

HTTPie 2.4.0
Requests 2.25.1
Pygments 2.7.4
Python 3.9.5 (default, May  4 2021, 03:33:11)
[Clang 12.0.0 (clang-1200.0.32.29)]
/usr/local/Cellar/httpie/2.4.0/libexec/bin/python3.9
Darwin 19.6.0

<Environment {'colors': 256,
 'config': {'default_options': []},
 'config_dir': PosixPath('/Users/bytedance/.config/httpie'),
 'devnull': <property object at 0x10d88f130>,
 'is_windows': False,
 'log_error': <function Environment.log_error at 0x10d888e50>,
 'program_name': 'http',
 'stderr': <_io.TextIOWrapper name='<stderr>' mode='w' encoding='utf-8'>,
 'stderr_isatty': True,
 'stdin': <_io.TextIOWrapper name='<stdin>' mode='r' encoding='utf-8'>,
 'stdin_encoding': 'utf-8',
 'stdin_isatty': False,
 'stdout': <_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>,
 'stdout_encoding': 'utf-8',
 'stdout_isatty': True}>

>>> requests.request(**{'auth': None,
 'data': <_io.BufferedReader name='<stdin>'>,
 'headers': {'User-Agent': b'HTTPie/2.4.0', 'Accept': b'application/json, */*;q=0.5', 'Content-Type': b'application/json'},
 'method': 'post',
 'params': <generator object MultiValueOrderedDict.items at 0x10d93ee40>,
 'url': 'http://localhost:8301/test'})

POST /test HTTP/1.1
Accept: application/json, */*;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
Content-Length: 60
Content-Type: application/json
Host: localhost:8301
User-Agent: HTTPie/2.4.0


http: error: ConnectionError: HTTPConnectionPool(host='localhost', port=8301): Max retries exceeded with url: /test (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x10d9c01f0>: Failed to establish a new connection: [Errno 61] Connection refused')) while doing a POST request to URL: http://localhost:8301/test

Traceback (most recent call last):
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/urllib3/connection.py", line 169, in _new_conn
    conn = connection.create_connection(
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/urllib3/util/connection.py", line 96, in create_connection
    raise err
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/urllib3/util/connection.py", line 86, in create_connection
    sock.connect(sa)
ConnectionRefusedError: [Errno 61] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/urllib3/connectionpool.py", line 699, in urlopen
    httplib_response = self._make_request(
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/urllib3/connectionpool.py", line 394, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/urllib3/connection.py", line 234, in request
    super(HTTPConnection, self).request(method, url, body=body, headers=headers)
  File "/usr/local/Cellar/python@3.9/3.9.5/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1253, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/local/Cellar/python@3.9/3.9.5/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1299, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/local/Cellar/python@3.9/3.9.5/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1248, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/local/Cellar/python@3.9/3.9.5/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 1008, in _send_output
    self.send(msg)
  File "/usr/local/Cellar/python@3.9/3.9.5/Frameworks/Python.framework/Versions/3.9/lib/python3.9/http/client.py", line 948, in send
    self.connect()
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/urllib3/connection.py", line 200, in connect
    conn = self._new_conn()
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/urllib3/connection.py", line 181, in _new_conn
    raise NewConnectionError(
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x10d9c01f0>: Failed to establish a new connection: [Errno 61] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/requests/adapters.py", line 439, in send
    resp = conn.urlopen(
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/urllib3/connectionpool.py", line 755, in urlopen
    retries = retries.increment(
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/urllib3/util/retry.py", line 573, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='localhost', port=8301): Max retries exceeded with url: /test (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x10d9c01f0>: Failed to establish a new connection: [Errno 61] Connection refused'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/bin/http", line 33, in <module>
    sys.exit(load_entry_point('httpie==2.4.0', 'console_scripts', 'http')())
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/httpie/__main__.py", line 11, in main
    exit_status = main()
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/httpie/core.py", line 70, in main
    exit_status = program(
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/httpie/core.py", line 169, in program
    for message in messages:
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/httpie/client.py", line 101, in collect_messages
    response = requests_session.send(
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/requests/sessions.py", line 655, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/Cellar/httpie/2.4.0/libexec/lib/python3.9/site-packages/requests/adapters.py", line 516, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='localhost', port=8301): Max retries exceeded with url: /test (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x10d9c01f0>: Failed to establish a new connection: [Errno 61] Connection refused'))

Case 1, http: error: RuntimeError: OrderedDict mutated during iteration
CASE 2, can parse session file and can send http request

I wonder, sending a request with a cookie and writing the response to a specified file be supported at the same time?
I remember that older versions, such as version 2.0.0, are supported.

[BoboTiG]

Thank you @caofanCPU. I can reproduce the problem, expect a fix very soon :)

[caofanCPU]

@BoboTiG @jokull
Thank you for your timely handling work, my httpie util is online again, ✌️!
‘cause can’t wait for the release version, I directly install the latest versio from the master. 😎
Of course, I am looking forward to the next release version! 🤝