Run pyupgrade across codebase to modernize syntax and patterns #1622
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pyupgrade is a tool to automatically upgrade syntax for newer versions
of the Python language.
The project has been Python 3 only since
35544e2, allowing for several cleanups:
Remove unnecessary "-- coding: utf-8 --" cookie. Python 3 reads all
source files as utf-8 by default.
Replace IOError/EnvironmentError with OSError. Python 3 unified these
exceptions. The old names are aliases only.
Use the Python 3 shorter super() syntax.
Remove "utf8" argument form encode/decode. In Python 3, this value is
the default.
Remove "r" from open() calls. In Python 3, this value is the default.
Remove u prefix from Unicode strings. In Python 3, all strings are
Unicode.
Replace io.open() with builtin open(). In Python 3, these functions
are functionally equivalent.