I was installing some dependency requirements for my project on a Windows machine by running the below command.
py -m pip install -r requirements.txt
And I got the below error.
Exact Error Message: “Preparing metadata (setup.py) … error
× python setup.py egg_info did not run successfully.
│ exit code: 1
╰─> [8 lines of output]
Traceback (most recent call last):
File “<string>”, line 2, in <module>
File “<pip-setuptools-caller>”, line 34, in <module>
File “C:\Users\rijsat\AppData\Local\Temp\pip-install-zuk43gtq\m2r_e56fc974548d456482c4df30a3e037e6\setup.py”, line 14, in <module>
from m2r import parse_from_file
File “C:\Users\rijsat\AppData\Local\Temp\pip-install-zuk43gtq\m2r_e56fc974548d456482c4df30a3e037e6\m2r.py”, line 59, in <module>
AttributeError: module ‘mistune’ has no attribute ‘BlockGrammar’
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
× Encountered error while generating package metadata.
╰─> See above for output.
note: This is an issue with the package mentioned above, not pip.
hint: See above for details.”
Then I downgraded the mistune version as suggested here. You can run the below cmd to install the lower working version of the mistune. Once, I downgraded the mistune version, the error got resolved.
py -m pip install mistune==0.8.4
I hope, it will be helpful for you, if you encounter the same error and issue.