Pipenv: "Error while finding module specification" after upgrade to v2018.11.26

Created on 28 Jul 2019  路  2Comments  路  Source: pypa/pipenv

Issue description

I was using a previous version of Pipenv, and used the following command to run my application: 

set FLASK_APP=app
set FLASK_ENV=development
flask run
 * Serving Flask app "app" (lazy loading)
 * Environment: development
 * Debug mode: on
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 242-429-215
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)

And then the application was run as expected.

I'm not sure if it's a pipenv problem, so I'd like some help solving this. After upgrading to the 2018.11.26 version, I started to have some problems executing the same code. Running the same sequence of commands above results in:

set FLASK_APP=app
set FLASK_ENV=development
flask run
 * Serving Flask app "app" (lazy loading)
 * Environment: development
 * Debug mode: on
 * Restarting with stat
c:\users\renan\.virtualenvs\pipenv_issue-9cyicfyp\scripts\python.exe: Error while finding module specification for 'C:\\Users\\renan\\.virtualenvs\\pipenv_issue-9cYIcFYP\\Scripts\\flask' (ModuleNotFoundError: No module named 'C:\\Users\\renan\\')

However, if I run specifying py-m ..., it works:

py -m flask run
 * Serving Flask app "app" (lazy loading)
 * Environment: development
 * Debug mode: on
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 242-429-215
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)

Expected result

I expected to run my application without specifying python on the command line. But if this is the new expected behavior of pipenv, all right, I just wish I knew there were changes.

I am using the console in administrator mode (cmd, not PowerShell).

Steps to replicate

git clone [email protected]:reebr/pip_env.git

cd ./pip_env
pipenv install
pipenv shell

set FLASK_ENV=development
set FLASK_APP=app
flask run

Environment

  • Windows 10 Pro x64 (1809)
  • Python 3.7.4
  • pipenv 2018.11.26

Pipenv support

$ pipenv --support

Pipenv version: '2018.11.26'

Pipenv location: 'c:\\users\\renan\\appdata\\local\\programs\\python\\python37\\lib\\site-packages\\pipenv'

Python location: 'c:\\users\\renan\\appdata\\local\\programs\\python\\python37\\python.exe'

Python installations found:

  • 3.7.4: C:\Users\renan\AppData\Local\Programs\Python\Python37\python.exe

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '3.7.4',
 'os_name': 'nt',
 'platform_machine': 'AMD64',
 'platform_python_implementation': 'CPython',
 'platform_release': '10',
 'platform_system': 'Windows',
 'platform_version': '10.0.17763',
 'python_full_version': '3.7.4',
 'python_version': '3.7',
 'sys_platform': 'win32'}

System environment variables:

  • ALLUSERSPROFILE
  • APPDATA
  • CHOCOLATEYINSTALL
  • CHOCOLATEYLASTPATHUPDATE
  • CHOCOLATEYTOOLSLOCATION
  • CLASSPATH
  • COMMONPROGRAMFILES
  • COMMONPROGRAMFILES(X86)
  • COMMONPROGRAMW6432
  • COMPUTERNAME
  • COMSPEC
  • DRIVERDATA
  • FPS_BROWSER_APP_PROFILE_STRING
  • FPS_BROWSER_USER_PROFILE_STRING
  • HOMEDRIVE
  • HOMEPATH
  • JAVA_HOME
  • LOCALAPPDATA
  • LOGONSERVER
  • NUMBER_OF_PROCESSORS
  • ONEDRIVE
  • ONEDRIVECONSUMER
  • OS
  • PATH
  • PATHEXT
  • PIPENV_ACTIVE
  • PIP_DISABLE_PIP_VERSION_CHECK
  • PIP_PYTHON_PATH
  • PROCESSOR_ARCHITECTURE
  • PROCESSOR_IDENTIFIER
  • PROCESSOR_LEVEL
  • PROCESSOR_REVISION
  • PROGRAMDATA
  • PROGRAMFILES
  • PROGRAMFILES(X86)
  • PROGRAMW6432
  • PROMPT
  • PSMODULEPATH
  • PUBLIC
  • PYCHARM COMMUNITY EDITION
  • PYTHONDONTWRITEBYTECODE
  • SESSIONNAME
  • SYSTEMDRIVE
  • SYSTEMROOT
  • TEMP
  • TMP
  • USERDOMAIN
  • USERDOMAIN_ROAMINGPROFILE
  • USERNAME
  • USERPROFILE
  • VIRTUAL_ENV
  • WINDIR
  • PIP_SHIMS_BASE_MODULE
  • PYTHONFINDER_IGNORE_UNSUPPORTED

Pipenv?specific environment variables:

  • PIPENV_ACTIVE: 1

Debug?specific environment variables:

  • PATH: C:\Users\renan\.virtualenvs\pipenv_issue-9cYIcFYP\Scripts;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files\nodejs\;C:\Program Files (x86)\Yarn\bin\;C:\Program Files\Git\cmd;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\ProgramData\chocolatey\bin;C:\Users\renan\AppData\Local\Android\Sdk\platform-tools;D:\Javafx-sdk-12.0.1;C:\Program Files\Java\jre1.8.0_211\bin;C:\Users\renan\AppData\Local\Programs\Python\Python37\Scripts\;C:\Users\renan\AppData\Local\Programs\Python\Python37\;C:\Users\renan\AppData\Local\Programs\Python\Python38\Scripts\;C:\Users\renan\AppData\Local\Programs\Python\Python38\;C:\Users\renan\AppData\Local\Microsoft\WindowsApps;C:\Users\renan\AppData\Roaming\npm;C:\Users\renan\AppData\Local\Yarn\bin;C:\Users\renan\AppData\Local\Programs\Microsoft VS Code\bin;D:\PyCharm Community Edition 2019.1.1\bin;;C:\tools\dart-sdk\bin;C:\Users\renan\AppData\Roaming\Pub\Cache\bin;C:\Flutter\bin;D:\Javafx-sdk-12.0.1;
  • VIRTUAL_ENV: C:\Users\renan\.virtualenvs\pipenv_issue-9cYIcFYP

Contents of Pipfile ('C:\Users\renan\Desktop\pipenv_issue\Pipfile'):

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

[dev-packages]

[packages]
flask = "*"

[requires]
python_version = "3.7"

Contents of Pipfile.lock ('C:\Users\renan\Desktop\pipenv_issue\Pipfile.lock'):

{
    "_meta": {
        "hash": {
            "sha256": "a82b674d67d29678775ff6b773de1686a9593749ec14483b0d8e05131b662286"
        },
        "pipfile-spec": 6,
        "requires": {
            "python_version": "3.7"
        },
        "sources": [
            {
                "name": "pypi",
                "url": "https://pypi.org/simple",
                "verify_ssl": true
            }
        ]
    },
    "default": {
        "click": {
            "hashes": [
                "sha256:2335065e6395b9e67ca716de5f7526736bfa6ceead690adf616d925bdc622b13",
                "sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7"
            ],
            "version": "==7.0"
        },
        "flask": {
            "hashes": [
                "sha256:13f9f196f330c7c2c5d7a5cf91af894110ca0215ac051b5844701f2bfd934d52",
                "sha256:45eb5a6fd193d6cf7e0cf5d8a5b31f83d5faae0293695626f539a823e93b13f6"
            ],
            "index": "pypi",
            "version": "==1.1.1"
        },
        "itsdangerous": {
            "hashes": [
                "sha256:321b033d07f2a4136d3ec762eac9f16a10ccd60f53c0c91af90217ace7ba1f19",
                "sha256:b12271b2047cb23eeb98c8b5622e2e5c5e9abd9784a153e9d8ef9cb4dd09d749"
            ],
            "version": "==1.1.0"
        },
        "jinja2": {
            "hashes": [
                "sha256:065c4f02ebe7f7cf559e49ee5a95fb800a9e4528727aec6f24402a5374c65013",
                "sha256:14dd6caf1527abb21f08f86c784eac40853ba93edb79552aa1e4b8aef1b61c7b"
            ],
            "version": "==2.10.1"
        },
        "markupsafe": {
            "hashes": [
                "sha256:00bc623926325b26bb9605ae9eae8a215691f33cae5df11ca5424f06f2d1f473",
                "sha256:09027a7803a62ca78792ad89403b1b7a73a01c8cb65909cd876f7fcebd79b161",
                "sha256:09c4b7f37d6c648cb13f9230d847adf22f8171b1ccc4d5682398e77f40309235",
                "sha256:1027c282dad077d0bae18be6794e6b6b8c91d58ed8a8d89a89d59693b9131db5",
                "sha256:24982cc2533820871eba85ba648cd53d8623687ff11cbb805be4ff7b4c971aff",
                "sha256:29872e92839765e546828bb7754a68c418d927cd064fd4708fab9fe9c8bb116b",
                "sha256:43a55c2930bbc139570ac2452adf3d70cdbb3cfe5912c71cdce1c2c6bbd9c5d1",
                "sha256:46c99d2de99945ec5cb54f23c8cd5689f6d7177305ebff350a58ce5f8de1669e",
                "sha256:500d4957e52ddc3351cabf489e79c91c17f6e0899158447047588650b5e69183",
                "sha256:535f6fc4d397c1563d08b88e485c3496cf5784e927af890fb3c3aac7f933ec66",
                "sha256:62fe6c95e3ec8a7fad637b7f3d372c15ec1caa01ab47926cfdf7a75b40e0eac1",
                "sha256:6dd73240d2af64df90aa7c4e7481e23825ea70af4b4922f8ede5b9e35f78a3b1",
                "sha256:717ba8fe3ae9cc0006d7c451f0bb265ee07739daf76355d06366154ee68d221e",
                "sha256:79855e1c5b8da654cf486b830bd42c06e8780cea587384cf6545b7d9ac013a0b",
                "sha256:7c1699dfe0cf8ff607dbdcc1e9b9af1755371f92a68f706051cc8c37d447c905",
                "sha256:88e5fcfb52ee7b911e8bb6d6aa2fd21fbecc674eadd44118a9cc3863f938e735",
                "sha256:8defac2f2ccd6805ebf65f5eeb132adcf2ab57aa11fdf4c0dd5169a004710e7d",
                "sha256:98c7086708b163d425c67c7a91bad6e466bb99d797aa64f965e9d25c12111a5e",
                "sha256:9add70b36c5666a2ed02b43b335fe19002ee5235efd4b8a89bfcf9005bebac0d",
                "sha256:9bf40443012702a1d2070043cb6291650a0841ece432556f784f004937f0f32c",
                "sha256:ade5e387d2ad0d7ebf59146cc00c8044acbd863725f887353a10df825fc8ae21",
                "sha256:b00c1de48212e4cc9603895652c5c410df699856a2853135b3967591e4beebc2",
                "sha256:b1282f8c00509d99fef04d8ba936b156d419be841854fe901d8ae224c59f0be5",
                "sha256:b2051432115498d3562c084a49bba65d97cf251f5a331c64a12ee7e04dacc51b",
                "sha256:ba59edeaa2fc6114428f1637ffff42da1e311e29382d81b339c1817d37ec93c6",
                "sha256:c8716a48d94b06bb3b2524c2b77e055fb313aeb4ea620c8dd03a105574ba704f",
                "sha256:cd5df75523866410809ca100dc9681e301e3c27567cf498077e8551b6d20e42f",
                "sha256:e249096428b3ae81b08327a63a485ad0878de3fb939049038579ac0ef61e17e7"
            ],
            "version": "==1.1.1"
        },
        "werkzeug": {
            "hashes": [
                "sha256:87ae4e5b5366da2347eb3116c0e6c681a0e939a33b2805e2c0cbd282664932c4",
                "sha256:a13b74dd3c45f758d4ebdb224be8f1ab8ef58b3c0ffc1783a8c7d9f4f50227e6"
            ],
            "version": "==0.15.5"
        }
    },
    "develop": {}
}

picture rn4n

Most helpful comment

No, the issue doesn't occur after upgrading pipenv, but after upgrading werkzeug. Though it is not an issue related to Pipenv, I would like to say the workaround is to use werkzeug 0.15.4 or lower.

https://github.com/pallets/werkzeug/issues/1614
https://github.com/pallets/werkzeug/issues/1619

picture frostming on 29 Jul 2019
❤3 🎉3

All 2 comments

I am also experiencing the same issue after reinstall of my machine.

tomwignall picture tomwignall on 28 Jul 2019

No, the issue doesn't occur after upgrading pipenv, but after upgrading werkzeug. Though it is not an issue related to Pipenv, I would like to say the workaround is to use werkzeug 0.15.4 or lower.

https://github.com/pallets/werkzeug/issues/1614
https://github.com/pallets/werkzeug/issues/1619

frostming picture frostming on 29 Jul 2019
❤3 🎉3
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