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Ruby Gem install Json fails on Mavericks and Xcode 5.1 - unknown argument: '-multiply_definedsuppres
...ommand-line options as errors. This issue has been seen when building both Python native extensions and Ruby Gems, where some invalid compiler options are currently specified.
Projects using invalid compiler options will need to be changed to remove those options. To help ease that transition, the ...
Django filter versus get for single object?
... Everything is correct but maybe more info should be added to answer? 1. Python encourages try/except (see EAFP), that's why QS.get() is good. 2. Details matter: does "expecting only one" means always 0-1 objects, or it's possible to have 2+ objects and that case should be handled too (in this c...
C++ IDE for Linux? [closed]
...u end up not using them. Here’s just a small and biased selection:
For Python development, there’s PyCharm
For R, there’s RStudio
For JavaScript and TypeScript, there’s Visual Studio Code (which is also a good all-round editor)
And finally, many people love the Sublime Text editor for gene...
prototype based vs. class based inheritance
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@Stephano, They're not so distinct as all that: Python, Ruby, Smalltalk use dictionaries for method lookup, and javascript and Self have classes. To some extent, you could argue that the difference is just that the prototype-oriented languages are exposing their implement...
How to add an extra column to a NumPy array
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@JoshAdel: I tried your code on ipython, and I think there's a syntax error. You might want to try changing a = np.random.rand((N,N)) to a = np.random.rand(N,N)
– hlin117
Apr 11 '15 at 15:23
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Regex to get string between curly braces
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...and Python just has slicing, which IMO is better than anything else :p.
– Grant Paul
Mar 3 '10 at 6:25
28
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Pandas - How to flatten a hierarchical index in columns
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The most pythonic way to do this to use map function.
df.columns = df.columns.map(' '.join).str.strip()
Output print(df.columns):
Index(['USAF', 'WBAN', 'day', 'month', 's_CD sum', 's_CL sum', 's_CNT sum',
's_PC sum', 'temp...
Interfaces — What's the point?
...s from IPizza is guaranteed to be orderable, as it has an Order() method.
Python is not statically-typed, therefore types are kept and looked up at runtime. So you can try calling an Order() method on any object. The runtime is happy as long as the object has such a method and probably just shrugs ...
Regex to validate password strength
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codaddict's solution works fine, but this one is a bit more efficient: (Python syntax)
password = re.compile(r"""(?#!py password Rev:20160831_2100)
# Validate password: 2 upper, 1 special, 2 digit, 1 lower, 8 chars.
^ # Anchor to start of string.
(?=(?:[^A-Z]*[...
Why is C so fast, and why aren't other languages as fast or faster? [closed]
...aster because almost everything else is written in C.
Java is built on C, Python is built on C (or Java, or .NET, etc.), Perl is, etc. The OS is written in C, the virtual machines are written in C, the compilers are written in C, the interpreters are written in C. Some things are still written in...