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77 lines
3.3 KiB
Plaintext
77 lines
3.3 KiB
Plaintext
Read PEP 8 (Guido's Style Guide) and know that we use almost all the same style
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guidelines.
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Maximum line length is 79 characters. 78 is a safer bet, though.
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Identation is 4 spaces per level. No tabs.
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Single quotes are used for all string literals that aren't docstrings.
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They're just easier to type.
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Triple double quotes (""") are always used for docstrings.
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Spaces go around all operators (except around '=' in default arguments to
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functions) and after all commas (unless doing so keeps a line within the 79
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character limit).
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Class names are StudlyCaps. Method and function names are camelCaps
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(StudlyCaps with an initial lowercase letter). If variable and attribute
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names can maintain readability without being camelCaps, then they should be
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entirely in lowercase, otherwise they should also use camelCaps. Plugin names
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are StudlyCaps.
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Imports should always happen at the top of the module, one import per line
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(so if imports need to be added or removed later, it can be done easily).
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A blank line should be between all consecutive method declarations in a
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class definition. Two blank lines should be between all consecutive class
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definitions in a file. Comments are even better than blank lines for
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separating classes.
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Database filenames should generally begin with the name of the plugin and the
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extension should be 'db'. baseplugin.DBHandler does this already.
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Whenever creating a file descriptor or socket, keep a reference around and be
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sure to close it. There should be no code like this:
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s = urllib2.urlopen('url').read()
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Instead, do this:
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fd = urllib2.urlopen('url')
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s = fd.read()
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fd.close()
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This is to be sure the bot doesn't leak file descriptors.
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All plugins should include a docstring decsribing what the plugin
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does. This docstring will be returned when the user wants help on a
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plugin.
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Method docstrings in classes deriving from callbacks.Privmsg should include an
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argument list as their first line, and after that a blank line followed by
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a longer description of what the command does. The argument list is used by
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the 'help' command, and the longer description is used by the 'morehelp'
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command.
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Whenever joining more than two strings, use string interpolation, not addition:
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s = x + y + z # Bad.
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s = '%s%s%s' % (x, y, z) # Good.
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s = ''.join([x, y, z]) # Best, but not as general.
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This has to do with efficiency; the intermediate string x+y is made (and thus
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copied) before x+y+z is made, so it's less efficient.
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Use the debug module to its fullest; when you need to print some values to
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debug, use debug.printf to do so, and leave those print statements in the code
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(perhaps commented out) so they can later be re-enabled. Remember that once
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code is buggy, it tends to have more bugs, and you'll probably need those print
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statements again.
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SQL table names should be all-lowercase and include underscores to separate
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words. This is because SQL itself is case-insensitive.
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SQL statements in code should put SQL words in ALL CAPS:
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SELECT quote FROM quotes ORDER BY random() LIMIT 1
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All plugins should have test cases written for them. Even if it
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doesn't actually test anything but just subclasses
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test.PluginDocumentation, it's good to have the test there so there's
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a place to add more tests later (and so we can be sure that all
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plugins are adequately documented).
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