How to satisfy this dependency requirements?

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pathlib==1.0.1; python_version < "3.4"

I am installing a requirements.txt by:

pip install requirements.txt

This is a third party software. I am seeing one line was like above in the requirements.txt. Does it mean it must have Python version < 3.4? However, the python in my environment is Python 3.7.

It didn't report any error. Why is that?

requirements.txt pip python
1 Answers

This line does not mean the program requires python earlier 3.4. The part after the semicolon (;) is an environment marker - if you have a python version earlier than 3.4, pathlib 1.0.1 is required. If you have a newer version of python, pathlib is not required.

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