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Django self-referential foreign key
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274
You can pass in the name of a model as a string to ForeignKey and it will do the right thing.
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How do I specify different layouts for portrait and landscape orientations?
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204
Create a layout-land directory and put the landscape version of your layout XML file in that d...
How to use `subprocess` command with pipes
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452
To use a pipe with the subprocess module, you have to pass shell=True.
However, this isn't real...
TypeError: $.ajax(…) is not a function?
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1032
Neither of the answers here helped me. The problem was: I was using the slim build of jQuery, wh...
How do I find numeric columns in Pandas?
...lude and exclude. So isNumeric would look like:
numerics = ['int16', 'int32', 'int64', 'float16', 'float32', 'float64']
newdf = df.select_dtypes(include=numerics)
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The written versions of the logical operators
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112
They originated in C in the header <iso646.h>. At the time there were keyboards that could...
REST response code for invalid data
...either change the Reason Phrase or include a body to explain the error.
412 - Precondition failed is used for conditional requests when using last-modified date and ETags.
403 - Forbidden is used when the server wishes to prevent access to a resource.
The only other choice that is possible is 422...
How would you count occurrences of a string (actually a char) within a string?
... "/once/upon/a/time/" and the results are as follows:
Your original = 12s
source.Count = 19s
source.Split = 17s
foreach (from bobwienholt's answer) = 10s
(The times are for 50,000,000 iterations so you're unlikely to notice much difference in the real world.)
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Remove the bottom divider of an android ListView
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answered Feb 25 '11 at 14:35
Alex.SemeniukAlex.Semeniuk
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How do I format a string using a dictionary in python-3.x?
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Since the question is specific to Python 3, here's using the new f-string syntax, available sin...