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+--- Thread: ModuleNotFoundError: No module named 'fcntl' (/thread-31333.html)
ModuleNotFoundError: No module named 'fcntl' - ErnestTBass - Dec-04-2020
I installed bpython quite easily no problem. However whenever i try to run it anything I get this error.
C:\Users\Newport_j\Downloads>bpython --V
Traceback (most recent call last):
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "C:\Users\Newport_j\AppData\Local\Programs\Python\Python37\Scripts\bpython.exe\__main__.py", line 4, in <module>
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\site-packages\bpython\curtsies.py", line 11, in <module>
import curtsies
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\site-packages\curtsies\__init__.py", line 4, in <module>
from .window import FullscreenWindow, CursorAwareWindow
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\site-packages\curtsies\window.py", line 30, in <module>
import blessings
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\site-packages\blessings\__init__.py", line 7, in <module>
from fcntl import ioctl
ModuleNotFoundError: No module named 'fcntl'
C:\Users\Newport_j\Downloads>bpython
Traceback (most recent call last):
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "C:\Users\Newport_j\AppData\Local\Programs\Python\Python37\Scripts\bpython.exe\__main__.py", line 4, in <module>
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\site-packages\bpython\curtsies.py", line 11, in <module>
import curtsies
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\site-packages\curtsies\__init__.py", line 4, in <module>
from .window import FullscreenWindow, CursorAwareWindow
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\site-packages\curtsies\window.py", line 30, in <module>
import blessings
File "c:\users\newport_j\appdata\local\programs\python\python37\lib\site-packages\blessings\__init__.py", line 7, in <module>
from fcntl import ioctl
ModuleNotFoundError: No module named 'fcntl'The error say no module named 'fcntl'. I am installing and trying to run bpython on Windows 10 Pro 64 bit.
When I google the error it seems to say there is no fix for this. It is a quirk on Windows 10 Pro, so move to Ubuntu where it will work.
Now it also implies on the internet that there is a work around. It seems to be vague on this so maybe the workaround is not universal but just applies in some cases.
So which is it? Is there a reliable workaround for Windows 10 or or not?
Any help appreciated. Thanks in advance.
Respectfully,
ErnestTBass
RE: ModuleNotFoundError: No module named 'fcntl' - bowlofred - Dec-04-2020
Fcntl is a unix/linux interface. Python exposes that interface in the fcntl module. Windows doesn't have that interface.
Everything you do in fcntl can be done in other ways in windows (probably via win32api), but that would be a port, not just some small changes. Using fcntl extensively pretty much means you are excluding windows. This isn't specific to Windows 10 Pro. I would expect any techniques that get this to work on windows (perhaps by disabling the bits that need the fcntl calls) should work on any version of windows.
I see this older SO post on windows bpython. Not sure if you've started there or not... https://stackoverflow.com/questions/52175161/installing-bpython-on-windows-10
This does seem to be an uphill climb for trying to run this on windows right now. I'd probably suggest installing WSL on your system to get Ubuntu and running the package there.
RE: ModuleNotFoundError: No module named 'fcntl' - ErnestTBass - Dec-05-2020
Oaky, thank you. I will switch OS's to Ubuntu.
Respectfully,
ErnestTBass