How to use requirements.txt to install all dependencies in a python project

Question

I am new to python. Recently I got a project written by python and it requires some installation. I run below command to install but got an error.

# pip install requirements.txt 

Collecting requirements.txt 

Could not find a version that satisfies the requirement requirements.txt (from versions: ) 

No matching distribution found for requirements.txt

Below is my requirements.txt file:

# cat requirements.txt 

ordereddict==1.1 

argparse==1.2.1 

python-dateutil==2.2 

matplotlib==1.3.1 

nose==1.3.0 

numpy==1.8.0 

pymongo==3.3.0 

psutil>=2.0

Is there an easy way to install all the required dependencies in this python project?

Answer 1

If you are using Linux as your OS then you can follow the below-mentioned steps:-

1. Firstly, remove matplotlib==1.3.1 from requirements.txt

2. After that try to install it with sudo apt-get install python-matplotlib

3. Run pip install -r requirements.txt (Python 2), or pip3 install -r requirements.txt (Python 3)

4. pip freeze > requirements.txt

If you are using Windows as your OS then use the following steps:-

1. python -m pip install -U pip setuptools

2. python -m pip install matplotlib

To know more about this you can have a look at the following video tutorial:-

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