requirements.txt pip code example

Example 1: install requirements.txt

pip install -r requirements.txt

Example 2: pip install from requirements.txt

$ pip install -r requirements.txt

Example 3: python requirements.txt

pip freeze #view requirements to be created (best done in virtual env)
pip freeze > requirements.txt #create requirements.txt (best done in virtual env)
pip install -r requirements.txt #install requirements.txt (best done in virtual env)

Example 4: pip install requirements.txt

pip3 install -r requirements.txt

Example 5: install requirements.txt in pip command

note: yor should be on the same dir as requirements.txt file 

pip install -r requirements.txt

Example 6: python requirements.txt

pip install -r requirements.txt

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Php Example