Python conventions

Variable names
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Variables names are in lower case with underscores used to separate words, as needed.

Constant names
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Constant names are in upper case with underscores used to separate words, as needed.

Indentation in function definitions
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Indent four spaces in the body of a function definition.

Separation of functions
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Separate functions with blank lines.

Line length
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Restrict lines to 79 characters. Use a backslash to continue a line.

Docstrings for functions
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A docstring in Python is put right after the function header. Multiple lines are fine. Use three double quotes to start and end.

Indentation in while loops
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Indent four spaces in the body of a while loop.

Indentation in for loops
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Indent four spaces in the body of a for loop.

Separation of class headers and docstrings
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Put a blank line between a class header and the docstring for the class.

Docstrings for classes
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In the docstring for the class, give the summary, list methods, and list attributes.

Docstrings for methods
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Docstrings for methods are like docstrings for functions.

Separation of docstrings and methods
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Put blank lines between the docstring for the class and the methods.

Class names
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Capitalize class names.

Method names
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The conventions for method names are the same as those for function names.