[WSL] pip install 명령이 먹통인 경우 해결 방법

윈도우에서 WSL2 환경으로 파이썬 개발을 하다보면 새로운 모듈을 설치해야할 경우가 있다. 이 때, pip install 명령을 사용하게 되는데 먹통이 되는 경우가 있다.

$ pip install requests
^CTraceback (most recent call last):
  File "/usr/bin/pip", line 11, in <module>
    load_entry_point('pip==20.0.2', 'console_scripts', 'pip')()
  File "/usr/lib/python3/dist-packages/pip/_internal/cli/main.py", line 73, in main
    command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
  File "/usr/lib/python3/dist-packages/pip/_internal/commands/__init__.py", line 96, in create_command
    module = importlib.import_module(module_path)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 848, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/usr/lib/python3/dist-packages/pip/_internal/commands/install.py", line 24, in <module>
    from pip._internal.cli.req_command import RequirementCommand
  File "/usr/lib/python3/dist-packages/pip/_internal/cli/req_command.py", line 19, in <module>
    from pip._internal.network.session import PipSession
  File "/usr/lib/python3/dist-packages/pip/_internal/network/session.py", line 26, in <module>
    from pip._internal.network.auth import MultiDomainBasicAuth
  File "/usr/lib/python3/dist-packages/pip/_internal/network/auth.py", line 36, in <module>
    import keyring  # noqa
  File "/usr/lib/python3/dist-packages/keyring/__init__.py", line 3, in <module>
    from .core import (
  File "/usr/lib/python3/dist-packages/keyring/core.py", line 189, in <module>
    init_backend()
  File "/usr/lib/python3/dist-packages/keyring/core.py", line 93, in init_backend
    keyrings = filter(limit, backend.get_all_keyring())
  File "/usr/lib/python3/dist-packages/keyring/util/__init__.py", line 21, in wrapper
    func.always_returns = func(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/keyring/backend.py", line 210, in get_all_keyring
    return list(rings)
  File "/usr/lib/python3/dist-packages/keyring/util/__init__.py", line 31, in suppress_exceptions
    for callable in callables:
  File "/usr/lib/python3/dist-packages/keyring/util/properties.py", line 26, in __get__
    return self.fget.__get__(None, owner)()
  File "/usr/lib/python3/dist-packages/keyring/backend.py", line 67, in viable
    cls.priority
  File "/usr/lib/python3/dist-packages/keyring/util/properties.py", line 26, in __get__
    return self.fget.__get__(None, owner)()
  File "/usr/lib/python3/dist-packages/keyring/backends/SecretService.py", line 34, in priority
    bus = secretstorage.dbus_init()
  File "/usr/lib/python3/dist-packages/secretstorage/__init__.py", line 47, in dbus_init
    return dbus.SessionBus()
  File "/usr/lib/python3/dist-packages/dbus/_dbus.py", line 212, in __new__
    return Bus.__new__(cls, Bus.TYPE_SESSION, private=private,
  File "/usr/lib/python3/dist-packages/dbus/_dbus.py", line 102, in __new__
    bus = BusConnection.__new__(subclass, bus_type, mainloop=mainloop)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 124, in __new__
    bus = cls._new_for_bus(address_or_type, mainloop=mainloop)
  File "/usr/lib/python3/dist-packages/dbus/exceptions.py", line 47, in __init__
    def __init__(self, *args, **kwargs):
KeyboardInterrupt

 

Hang 상태에서 [Ctrl] + c 로 명령을 취소하면 이런 콜스택을 찍고 종료된다.

해결방법

WSL2에서 pip를 실행하면 XServer에 연결시도를 하는 경우가 있다. 이 경우 DISPLAY 환경 변수를 초기화하면 먹통이 되지 않고 정상적으로 실행된다.

$ export DISPLAY=
$ pip install requests