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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
...guage and preclude a whole bunch of new features from being implemented in Python 2.x.
What yield from does is it establishes a transparent bidirectional connection between the caller and the sub-generator:
The connection is "transparent" in the sense that it will propagate everything correctly t...
Substitute multiple whitespace with single whitespace in Python [duplicate]
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More lines than the others, and thus less "pythonic", but clearer.
– BuvinJ
Feb 11 '16 at 20:02
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What is the best way to get all the divisors of a number?
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For those of us who don't understand Pythonese, what is this actually doing?
– Matthew Scharley
Oct 7 '08 at 13:24
1
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How do you extract a column from a multi-dimensional array?
...oes anybody know how to extract a column from a multi-dimensional array in Python?
20 Answers
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How to select a drop-down menu value with Selenium using Python?
...tackexchange.com/questions/1355/unable-to-select-an-option-using-seleniums-python-webdriver
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Rename Files and Directories (Add Prefix)
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Some systems have a util-linux utility called "rename" which works differently (on Ubuntu it's called "rename.ul").
– Paused until further notice.
Jan 24 '11 at 23:07
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How to re-raise an exception in nested try/except blocks?
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As of Python 3 the traceback is stored in the exception, so a simple raise e will do the (mostly) right thing:
try:
something()
except SomeError as e:
try:
plan_B()
except AlsoFailsError:
raise e # or r...
Spinlock versus Semaphore
...ey're implemented
A semaphore will nowadays typically wrap sys_futex under Linux (optionally with a spinlock that exits after a few attempts).
A spinlock is typically implemented using atomic operations, and without using anything provided by the operating system. In the past, this meant using eithe...
How do I write a “tab” in Python?
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The Python reference manual includes several string literals that can be used in a string. These special sequences of characters are replaced by the intended meaning of the escape sequence.
Here is a table of some of the more u...
How can I get a list of all classes within current module in Python?
... even if the current module hasn't been put in sys.modules, e.g. from docs.python.org/2/library/functions.html#execfile
– Chris Smith
May 1 '13 at 14:44
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