PEP8 style guide for Python

PEP8 is a style guide for Python that helps programmers write readable code. It is important to follow certain conventions to make our code readable. Some examples of coding conventions include the following:

• Inline comments should start with a #  and be followed by a single space.
• Variables should have the following convention: first_var.
• Avoiding trailing whitespaces on each line. For example, if name == "test": should not be followed by whitespaces.

Note

You can read the entire PEP8 standards at https://www.python.org/dev/peps/pep-0008/#block-comments.

Verifying PEP8 guidelines

There are tools to verify PEP8 standards of your code. After writing a code sample, ensure that your code adheres to PEP8 standards. This can be done using the pep8 package. It can be installed as follows:

pip3 install pep8

Let's check whether one of our code samples has been written according to the PEP8 convention. This can be done as follows:

pep8 opencv_test.py

The check indicated the following...