TextIO improvement: - 25% speed increse in tell(); - f.seek(0, 1) now maps to f.seek(f.tell(), 0) instead of to f.tell().
TextIO improvement:
- 25% speed increse in tell();
- f.seek(0, 1) now maps to f.seek(f.tell(), 0) instead of to f.tell().

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator