NFD

# NFD code style guidelines

## C++ code style

NFD adopts the [ndn-cxx code style](https://docs.named-data.net/ndn-cxx/current/code-style.html).

## Python code style

Most of the provisions in the above style guidance apply to Python as well.  For python-specific elements, [PEP 8](https://www.python.org/dev/peps/pep-0008/) can be used as a reference coding style.

The following is few rules directly adopted from [PEP 8](https://peps.python.org/pep-0008/):

* **P1**  Always surround these binary operators with a single space on either side: assignment (=), augmented assignment (+=, -= etc.), comparisons (==, <, >, !=, <>, <=, >=, in, not in, is, is not), Booleans (and, or, not).

    ```py

    def complex(real, imag=0.0):

        value = 1.1

        return magic(r=real + value, i=imag)

    ```

* **P2** Don't use spaces around the `=` sign when used to indicate a keyword argument or a default parameter value.

    ```py

    def complex(real, imag=0.0):

        return magic(r=real, i=imag)

    ```