general translations fixes

(closes 1911)

1: D400 First line should end with '.', not 'n'
1: D205 Blank line missing between one-line summary and description
83:1: E303 too many blank lines (3)
83: D400 First line should end with '.', not 'd'
83: D205 Blank line missing between one-line summary and description
96:25: E124 closing bracket does not match visual indentation
136:8: E714 test for object identity should be 'is not'
138:8: E714 test for object identity should be 'is not'
154: D301 Use r""" if any backslashes in a docstring
154: D400 First line should end with '.', not 'y'
154: D205 Blank line missing between one-line summary and description
255:53: E502 the backslash is redundant between brackets
256:25: E128 continuation line under-indented for visual indent
256:50: E502 the backslash is redundant between brackets
256:28: E251 unexpected spaces around keyword / parameter equals
256:30: E251 unexpected spaces around keyword / parameter equals
257:25: E128 continuation line under-indented for visual indent
257:50: E502 the backslash is redundant between brackets
257:28: E251 unexpected spaces around keyword / parameter equals
257:30: E251 unexpected spaces around keyword / parameter equals
258:25: E128 continuation line under-indented for visual indent
258:44: E502 the backslash is redundant between brackets
258:31: E251 unexpected spaces around keyword / parameter equals
258:33: E251 unexpected spaces around keyword / parameter equals
259:25: E128 continuation line under-indented for visual indent
259:46: E502 the backslash is redundant between brackets
259:35: E251 unexpected spaces around keyword / parameter equals
259:37: E251 unexpected spaces around keyword / parameter equals
260:25: E128 continuation line under-indented for visual indent
260:35: E251 unexpected spaces around keyword / parameter equals
260:37: E251 unexpected spaces around keyword / parameter equals
277: D200 One-line docstring should not occupy 3 lines
288: D209 Put multi-line docstring closing quotes on separate line
288: D205 Blank line missing between one-line summary and description
428: D401 First line should be imperative: 'Remove', not 'Removes'
428: D400 First line should end with '.', not 'n'
428: D205 Blank line missing between one-line summary and description
449:1: E302 expected 2 blank lines, found 1
449: D400 First line should end with '.', not 's'
449: D205 Blank line missing between one-line summary and description
459:17: F821 undefined name 'Header'