大约有 40,000 项符合查询结果（耗时：0.0372秒） [XML]
How do I check that multiple keys are in a dict in a single pass?
...king for 100 items in 632499
0.28672504425048828
#This one only works for Python3
>>> Timer('set(q) <= d.keys()','D=1000000;Q=100;'+setup).timeit(1)
looking for 100 items in 632084
2.5987625122070312e-05
>>> Timer('all(k in d for k in q)','D=1000000;Q=100;'+setup).timeit(1)
lo...
python list by value not by reference [duplicate]
...ld_array = [[2, 3], [4, 5]] # python2.* new_array = map(list, old_array) # python3.* new_array = list(map(list, old_array))
– Pythoner
Jun 25 '18 at 14:59
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Installing SciPy with pip
...all numpy). The svn install obviates @lokalhort's github repo install with python3 or @elaichi's dependency apt-gets for ubuntu.
– hobs
Nov 2 '12 at 19:31
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DistutilsOptionError: must supply either home or prefix/exec-prefix — not both
...get directory. My issue was additionally complicated because i installed python3 as well, but +1 for the virtualenv solution.
– Josh Brown
May 1 '18 at 18:37
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How do I apply a diff patch on Windows?
... I use this a lot. Thanks @techtonik. Any news on getting it working with Python3?
– pelson
Aug 28 '15 at 15:55
Run p...
Most pythonic way to delete a file which may not exist
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Best answer for practical python3 in my opinion.
– mrgnw
May 12 at 15:14
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pip broke. how to fix DistributionNotFound error?
...g with the get-pip script:
wget https://bootstrap.pypa.io/get-pip.py
sudo python3 get-pip.py
This is sourced from the pip Github page, and worked for me.
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log messages appearing twice with Python Logging
...ne instantiated from one of my classes, but the logger variable present on Python3 cache, and the handler was added every 60 sec by an AppScheduler which I configured. So, this if not logger.handlers is a pretty smart way to avoid this type of phenomenon. Thanks for the solution, comrade :)!
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Convert string to binary in python
...0b100000 0b1110111 0b1101111 0b1110010 0b1101100 0b1100100'
Note that in python3 you need to specify an encoding for bytearray function :
>>> ' '.join(map(bin,bytearray(st,'utf8')))
'0b1101000 0b1100101 0b1101100 0b1101100 0b1101111 0b100000 0b1110111 0b1101111 0b1110010 0b1101100 0b1100...
Django : How can I see a list of urlpatterns?
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Or for python3: set(v[1] for k,v in get_resolver(None).reverse_dict.items())
– Private
Oct 13 '18 at 12:24
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