General rules

The general rules apply to Python and C++ code.

Code lay-out

• Use 4 spaces per indentation level.

• Do not use tabs.

• Do not exceed a line length of 80 characters (a few more characters are acceptable in exceptional cases).

• Put a blank line at the end of each file (this is required by some compilers).

• Align successive similar lines on common elements. Here an example illustrating the alignment on the = symbol:

  max     = par.max
  prompt  = par.prompt
  sum    += par.sum
  

• Each function or method must terminate with a single return statement that is placed at the end of the function or method.

• Always use English words (class names, method and function names, comments, documentation, etc.).