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Refactor simple dict.update calls
This commit refactors simple `dict.update({key: value})` calls which can
be done via `dict[key] = value` instead.
I found those cases with the [semgrep](https://semgrep.dev/) tool:
```
$ semgrep --lang python --pattern '$DICT.update({$A: ...})'
┌─────────────────┐
│ 5 Code Findings │
└─────────────────┘
Lib/dataclasses.py
1268┆ slots.update({slot: doc})
Lib/multiprocessing/resource_tracker.py
50┆ _CLEANUP_FUNCS.update({
51┆ 'semaphore': _multiprocessing.sem_unlink,
52┆ })
⋮┆----------------------------------------
53┆ _CLEANUP_FUNCS.update({
54┆ 'shared_memory': _posixshmem.shm_unlink,
55┆ })
Lib/tkinter/scrolledtext.py
26┆ kw.update({'yscrollcommand': self.vbar.set})
Lib/xmlrpc/server.py
242┆ self.funcs.update({'system.multicall' : self.system_multicall})
```
56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
"""A ScrolledText widget feels like a text widget but also has a
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vertical scroll bar on its right. (Later, options may be added to
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add a horizontal bar as well, to make the bars disappear
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automatically when not needed, to move them to the other side of the
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window, etc.)
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Configuration options are passed to the Text widget.
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A Frame widget is inserted between the master and the text, to hold
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the Scrollbar widget.
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Most methods calls are inherited from the Text widget; Pack, Grid and
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Place methods are redirected to the Frame widget however.
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"""
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from tkinter import Frame, Text, Scrollbar, Pack, Grid, Place
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from tkinter.constants import RIGHT, LEFT, Y, BOTH
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__all__ = ['ScrolledText']
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class ScrolledText(Text):
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def __init__(self, master=None, **kw):
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self.frame = Frame(master)
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self.vbar = Scrollbar(self.frame)
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self.vbar.pack(side=RIGHT, fill=Y)
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kw['yscrollcommand'] = self.vbar.set
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Text.__init__(self, self.frame, **kw)
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self.pack(side=LEFT, fill=BOTH, expand=True)
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self.vbar['command'] = self.yview
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# Copy geometry methods of self.frame without overriding Text
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# methods -- hack!
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text_meths = vars(Text).keys()
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methods = vars(Pack).keys() | vars(Grid).keys() | vars(Place).keys()
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methods = methods.difference(text_meths)
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for m in methods:
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if m[0] != '_' and m != 'config' and m != 'configure':
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setattr(self, m, getattr(self.frame, m))
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def __str__(self):
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return str(self.frame)
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def example():
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from tkinter.constants import END
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stext = ScrolledText(bg='white', height=10)
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stext.insert(END, __doc__)
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stext.pack(fill=BOTH, side=LEFT, expand=True)
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stext.focus_set()
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stext.mainloop()
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if __name__ == "__main__":
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example()
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