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Commit ad810ff

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cmarqucmarqu
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Make example code more compact
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-71
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‎Doc/faq/programming.rst

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+3-3Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -340,7 +340,7 @@ Why are default values shared between objects?
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This type of bug commonly bites neophyte programmers. Consider this function::
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342342
def foo(mydict={}): # Danger: shared reference to one dict for all calls
343-
# ... compute something ...
343+
# compute something
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mydict[key] = value
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return mydict
346346

@@ -382,8 +382,8 @@ requested again. This is called "memoizing", and can be implemented like this::
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return _cache[(arg1, arg2)]
383383

384384
# Calculate the value
385-
result = ... # ... expensive computation ...
386-
_cache[(arg1, arg2)] = result # Store result in the cache
385+
result = ... # expensive computation
386+
_cache[(arg1, arg2)] = result # Store result in the cache
387387
return result
388388

389389
You could use a global variable containing a dictionary instead of the default

‎Doc/howto/ipaddress.rst

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+1-2Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -254,8 +254,7 @@ It also means that network objects lend themselves to using the list
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membership test syntax like this::
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if address in network:
257-
# do something
258-
...
257+
... # do something
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260259
Containment testing is done efficiently based on the network prefix::
261260

‎Doc/howto/urllib2.rst

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+2-4Lines changed: 2 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -359,8 +359,7 @@ Number 1
359359
print('We failed to reach a server.')
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print('Reason: ', e.reason)
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else:
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# everything is fine
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...
362+
... # everything is fine
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.. note::
@@ -386,8 +385,7 @@ Number 2
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print('The server couldn\'t fulfill the request.')
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print('Error code: ', e.code)
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else:
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# everything is fine
390-
...
388+
... # everything is fine
391389

392390

393391
info and geturl

‎Doc/library/asyncio-eventloop.rst

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+1-2Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1655,8 +1655,7 @@ Do not instantiate the :class:`Server` class directly.
16551655
srv = await loop.create_server(...)
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async with srv:
1658-
# some code
1659-
...
1658+
... # some code
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16611660
# At this point, srv is closed and no longer accepts new connections.
16621661

‎Doc/library/asyncio-sync.rst

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+4-8Lines changed: 4 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -51,8 +51,7 @@ Lock
5151

5252
# ... later
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async with lock:
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# access shared state
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...
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... # access shared state
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which is equivalent to::
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@@ -61,8 +60,7 @@ Lock
6160
# ... later
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await lock.acquire()
6362
try:
64-
# access shared state
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...
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... # access shared state
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finally:
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lock.release()
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@@ -301,8 +299,7 @@ Semaphore
301299

302300
# ... later
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async with sem:
304-
# work with shared resource
305-
...
302+
... # work with shared resource
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307304
which is equivalent to::
308305

@@ -311,8 +308,7 @@ Semaphore
311308
# ... later
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await sem.acquire()
313310
try:
314-
# work with shared resource
315-
...
311+
... # work with shared resource
316312
finally:
317313
sem.release()
318314

‎Doc/library/contextlib.rst

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+8-16Lines changed: 8 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -145,8 +145,7 @@ Functions and classes provided:
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@timeit()
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async def main():
148-
# ... async code ...
149-
...
148+
... # async code
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When used as a decorator, a new generator instance is implicitly created on
152151
each function call. This allows the otherwise "one-shot" context managers
@@ -242,8 +241,7 @@ Functions and classes provided:
242241
# Do not ignore any exceptions, cm has no effect.
243242
cm = contextlib.nullcontext()
244243
with cm:
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# Do something
246-
...
244+
... # Do something
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248246
An example using *enter_result*::
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@@ -256,8 +254,7 @@ Functions and classes provided:
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cm = nullcontext(file_or_path)
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with cm as file:
259-
# Perform processing on the file
260-
...
257+
... # Perform processing on the file
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262259
It can also be used as a stand-in for
263260
:ref:`asynchronous context managers <async-context-managers>`::
@@ -271,8 +268,7 @@ Functions and classes provided:
271268
cm = nullcontext(session)
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273270
async with cm as session:
274-
# Send http requests with session
275-
...
271+
... # Send http requests with session
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.. versionadded:: 3.7
278274

@@ -442,15 +438,13 @@ Functions and classes provided:
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443439
def f():
444440
with cm():
445-
# Do stuff
446-
...
441+
... # Do stuff
447442

448443
``ContextDecorator`` lets you instead write::
449444

450445
@cm()
451446
def f():
452-
# Do stuff
453-
...
447+
... # Do stuff
454448

455449
It makes it clear that the ``cm`` applies to the whole function, rather than
456450
just a piece of it (and saving an indentation level is nice, too).
@@ -712,12 +706,10 @@ protocol can be separated slightly in order to allow this::
712706
try:
713707
x = stack.enter_context(cm)
714708
except Exception:
715-
# handle __enter__ exception
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...
709+
... # handle __enter__ exception
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else:
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with stack:
719-
# Handle normal case
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...
712+
... # Handle normal case
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722714
Actually needing to do this is likely to indicate that the underlying API
723715
should be providing a direct resource management interface for use with

‎Doc/library/inspect.rst

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+1-2Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1404,8 +1404,7 @@ is considered deprecated and may be removed in the future.
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def handle_stackframe_without_leak():
14051405
frame = inspect.currentframe()
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try:
1407-
# do something with the frame
1408-
...
1407+
... # do something with the frame
14091408
finally:
14101409
del frame
14111410

‎Doc/library/logging.rst

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+1-2Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1175,8 +1175,7 @@ functions.
11751175
not undo customizations already applied by other code. For example::
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11771177
class MyLogger(logging.getLoggerClass()):
1178-
# ... override behaviour here
1179-
...
1178+
... # override behaviour here
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11811180

11821181
.. function:: getLogRecordFactory()

‎Doc/library/multiprocessing.rst

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+2-4Lines changed: 2 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -2935,8 +2935,7 @@ Explicitly pass resources to child processes
29352935
from multiprocessing import Process, Lock
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29372937
def f():
2938-
# ... do something using "lock" ...
2939-
...
2938+
... # do something using "lock"
29402939

29412940
if __name__ == '__main__':
29422941
lock = Lock()
@@ -2948,8 +2947,7 @@ Explicitly pass resources to child processes
29482947
from multiprocessing import Process, Lock
29492948

29502949
def f(l):
2951-
# ... do something using "l" ...
2952-
...
2950+
... # do something using "l"
29532951

29542952
if __name__ == '__main__':
29552953
lock = Lock()

‎Doc/library/sys.rst

Copy file name to clipboardExpand all lines: Doc/library/sys.rst
+1-2Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1461,8 +1461,7 @@ always available. Unless explicitly noted otherwise, all variables are read-only
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recommended to use the following idiom::
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14631463
if sys.platform.startswith('sunos'):
1464-
# SunOS-specific code here...
1465-
...
1464+
... # SunOS-specific code here
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14671466
.. versionchanged:: 3.3
14681467
On Linux, :data:`sys.platform` doesn't contain the major version anymore.

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