I installed pyyaml via pip, but when I run my Python3 script, I'm not it can't find the mo-CodePudding

I’m on Mac OS X Big Sur. I installed python3 via brew, and have this version

$ python3 --version
Python 3.9.13

Pip verison is

$ pip3 --version
pip 22.1.1 from /Users/davea/Library/Python/3.8/lib/python/site-packages/pip (python 3.8)

I want to write a program use the pyyaml module. I’m told I already installed it

$ pip3 install pyyaml
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: pyyaml in /Users/david.alvarado/Library/Python/3.8/lib/python/site-packages (6.0)

I have this script

import pyyaml

arg = sys.argv[0]
with open(arg) as f:
    document = f.readlines()
    print(yaml.load(document))

But when I run my program, I’m told pyyaml cannot be found

$ python3 convert_yaml_to_json.py ~/Downloads/myfile.yml 
Traceback (most recent call last):
  File "/Users/davea/scripts/convert_yaml_to_json.py", line 1, in <module>
    import pyyaml

Edit: added some output in response to suggestion given

I tried using the full path of Python and I’m told the requirement is already satisfied

$ /usr/local/bin/python3 -m pip install pyyaml
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
Requirement already satisfied: pyyaml in /usr/local/lib/python3.9/site-packages (6.0)
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621

I even tried pip3

$ /usr/local/bin/python3 -m pip3 install pyyaml
/usr/local/opt/[email protected]/bin/python3.9: No module named pip3

However, when running with the full path it says it can’t find the YAML module

$ /usr/local/bin/python3 convert_yaml_to_json.py 
Traceback (most recent call last):
  File "/Users/davea/scripts/convert_yaml_to_json.py", line 1, in <module>
    import pyyaml
ModuleNotFoundError: No module named 'pyyaml'

CodePudding user response：

It works for me in ubuntu

python3 -m pip install pyyaml

CodePudding user response：

Can you try :

/usr/local/opt/[email protected]/bin/python3.9 -m pip install pyyaml

then run :

/usr/local/bin/python3 convert_yaml_to_json.py