大约有 11,000 项符合查询结果(耗时:0.0307秒) [XML]

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Correct way to use get_or_create?

... Following @Tobu answer and @mipadi comment, in a more pythonic way, if not interested in the created flag, I would use: customer.source, _ = Source.objects.get_or_create(name="Website") share ...
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What is a word boundary in regex?

...e letter a inside 'cat' should not be replaced. So I'll perform regex (in Python) as re.sub("\ba","e", myString.strip()) //replace a with e so the output will be This is e cat end she's ewesome share | ...
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How to check BLAS/LAPACK linkage in NumPy and SciPy?

...clude', '/usr/include', '/opt/local/include', '/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/include'], 'libraries': ['blas', 'blas'], 'library_dirs': ['/usr/lib']} and sysinfo.get_info('lapack') returned {'language': 'f77', 'libraries': ['lapack', 'la...
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Run an OLS regression with Pandas Data Frame

... @DSM Very new to python. Tried running your same code and got errors on both print messages: print result.summary() ^ SyntaxError: invalid syntax >>> print result.parmas File "<stdin>", line 1 print result....
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Right way to reverse pandas.DataFrame?

... Is df = df[::-1] a pythonic and valid solution? – tommy.carstensen Oct 6 '18 at 23:47 ...
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Equation for testing if a point is inside a circle

...enter_y - y, 2)) return D <= radius that's in C#...convert for use in python... share | improve this answer | follow | ...
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“’” showing on page instead of “ ' ”

... showing as … and ê was showing as ê. This is how it got there (python code): # Adam edits original file using windows-1252 windows = '\x85\xea' # that is HORIZONTAL ELLIPSIS, LATIN SMALL LETTER E WITH CIRCUMFLEX # Beth reads it correctly as windows-1252 and writes it as utf-8 utf8 = w...
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Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?

... @jsbueno: that will work for Python code but not for C/Fortran routines that Scipy/Numpy wraps around. Those wrapped routines are where the power of Numpy lies. – Dat Chu Nov 23 '10 at 17:45 ...
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Adding a y-axis label to secondary y-axis in matplotlib

... I don't have access to Python right now, but off the top of my head: fig = plt.figure() axes1 = fig.add_subplot(111) # set props for left y-axis here axes2 = axes1.twinx() # mirror them axes2.set_ylabel(...) ...
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Remap values in pandas column with a dict

...nd third rows were altered, because the keys in di are 0 and 2, which with Python's 0-based indexing refer to the first and third locations. share | improve this answer | fol...