Python27(win): import daemon, but there is an error: No module named pwd

Question

1) pip install daemon.

2) Open windows cmd and input: python, then input： import daemon the terminal show

>>> import daemon
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python27\lib\site-packages\daemon\__init__.py", line 42, in <module>
    from .daemon import DaemonContext
  File "C:\Python27\lib\site-packages\daemon\daemon.py", line 25, in <module>
    import pwd
ImportError: No module named pwd
>>>

3) pip install pwd

what's the problem?????

Pedrick

have you tried step 2 and 3 the other way round? – Bedridden

C:\Python27\Scripts>pip install pwd Collecting pwd Could not find a version that satisfies the requirement pwd (from versions: ) No matching distribution found for pwd – Pedrick

looks like no module named "pwd", – Pedrick

Did you install it in a distribution of Python that is different to the one you are using in your project? – Gentry

Answer 1

1. The pwd module is a UNIX only package, it's for managing passwords.

2. The package you are trying to install is daemon, which is an un-maintained package from 2014. There is a more recent package called python-daemon, which is well maintained and used for implementing daemons in UNIX systems. It also works with python3. Though again, this will not work on windows.

3. If you're writing an application yourself and want to do this on windows you need to install it as a service, not a daemon this stackoverflow post is old, but still relevant.

Dissimulate

python-daemon also requires pwd apparently – Slur

Answer 2

python-daemon (newer version) and daemon both require the pwd package, which is not available on Windows.

Your code should detect that this is not available and disable daemon mode on Windows (which isn't really a thing).

try:
    import daemon
except ImportError:
    daemon = None

Then later, you can check if daemon is None.

Slur

Answer 3

Same thing happened to me in getpass module, it worked the first time in getpass.getuser() but then it stopped working saying

module pwd not found

I fixed it by repairing the python installation from the installer itself.

Pressley

Answer 4

Internally they are using pwd for fetching owner's name which you can avoid by simply commenting import pwd in pebblo.pycheck the image below

Oswell

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