大约有 4,400 项符合查询结果（耗时：0.0302秒） [XML]
Import a module from a relative path
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Running Win 7 Pro 64x and Python 2.7 I get a few errors. 1) I had to add inspect to the import list. 2) The 1st value, [0], in the tuple is an empty string. The 2nd, [1], shows the file name. I am guessing that the first should be the path... Any ideas?...
NumPy array initialization (fill with identical values)
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On my system (Python 2.7, Numpy 1.8), np.full() is actually slightly slower than np.empty() followed by np.fill().
– John Zwinck
Jul 25 '14 at 8:37
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Daemon Threads Explanation
...3, but the fix was never backported to 2.x. (An attempt to backport to the 2.7 branch caused another bug and it was abandoned.) Daemon threads may be ok in Python >= 3.2.1, but definitely aren’t in earlier versions."
– clacke
Apr 11 '16 at 12:19
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Python: reload component Y imported with 'from X import Y'?
...at I can tell the correct answer is:
from importlib import reload # python 2.7 does not require this
import X
reload( X )
from X import Y
Test
My test was the following (Python 2.6.5 + bpython 0.9.5.2)
X.py:
def Y():
print "Test 1"
bpython:
>>> from X import Y
>>> print Y()
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How to split a string into a list?
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Python 2.7+ as of April 2016.
– AnneTheAgile
Sep 20 '16 at 20:57
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python: how to identify if a variable is an array or a scalar
... i've actually upvoted, but then realized that it deosn't work in 2.7:>>> p=[] >>> type(p) in (list) Traceback (most recent call last): File "<stdin>", line 1, in <module>
– Oleg Gryb
Jun 12 '14 at 1:14
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How do you create a daemon in Python?
... specification. The python-daemon reference implementation works on Python 2.7 or later, and Python 3.2 or later.
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How to get week number in Python?
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(Added in Python 3.6, backported to some distribution's Python 2.7's) Several additional directives not required by the C89 standard are included for convenience. These parameters all correspond to ISO 8601 date values. These may not be available on all platforms when used with the strft...
How to get an absolute file path in Python
...the new Python 3.4 library pathlib. (You can also get it for Python 2.6 or 2.7 using pip install pathlib.) The authors wrote: "The aim of this library is to provide a simple hierarchy of classes to handle filesystem paths and the common operations users do over them."
To get an absolute path in Win...
Transpose list of lists
...a *args: args, *list_list)))
[[1, 4, 7], [2, 5, 8], [3, 6, 9]] // Python 2.7
[[1, 4, 7], [2, 5, 8], [3, 6, 9], [None, 6.1, None], [None, 6.2, None], [None, 6.3, None]] // 3.6+
Alas the ragged rows do NOT become ragged columns in Python 3, they are just truncated. Boo hoo progress.
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