how to use a requirements.txt file code example

Example 1: install requirements.txt

pip install -r requirements.txt

Example 2: install requirements.txt in pip command

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

pip install -r requirements.txt

Example 3: requeriments.txt

pip freeze > requirements.txt

Example 4: how to install requirements.txt

pip3 install -r requirements.txt