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Is there shorthand for returning a default value if None in Python? [duplicate]
...d the empty string if x is null. I've found it useful for working with databases.
5 Answers
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Changing a specific column name in pandas DataFrame
...[28]: df
Out[28]:
one three new_name
0 1 a 9
1 2 b 8
2 3 c 7
3 4 d 6
4 5 e 5
Following is the docstring for the rename method.
Definition: df.rename(self, index=None, columns=None, copy=True, inplace=False)
Docstring:...
character showing up in files. How to remove them?
...e 's/^\x{fffe}//' file1.js path/to/file2.js
I would assume the tool will break if you have other utf-8 in your files, but if not, perhaps this workaround can help you. (Untested ...)
Edit: added the -CSD option, as per tchrist's comment.
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How Does Modulus Divison Work
... a modulo division is the remainder of an integer division of the given numbers.
That means:
27 / 16 = 1, remainder 11
=> 27 mod 16 = 11
Other examples:
30 / 3 = 10, remainder 0
=> 30 mod 3 = 0
35 / 3 = 11, remainder 2
=> 35 mod 3 = 2
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Print number of keys in Redis
Is there a way to print the number of keys in Redis?
8 Answers
8
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Refused to display in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'
I am developing a website that is supposed to be responsive so that people can access it from their phones. The site has got some secured parts that can be logged into using Google, Facebook, ...etc (OAuth).
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What is “rvalue reference for *this”?
...s a just a "marketing statement". The type of *this never changes, see the bottom of this post. It's way easier to understand it with this wording though.
Next, the following code chooses the function to be called based on the ref-qualifier of the "implicit object parameter" of the function†:
// t...
How can I grep for a string that begins with a dash/hyphen?
... grep for the string that starts with a dash/hyphen, like -X , in a file, but it's confusing this as a command line argument.
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How to remove constraints from my MySQL table?
I want to remove constraints from my table. My query is:
12 Answers
12
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Adding minutes to date time in PHP
...me, after doing lots of google'ing and PHP manual reading, I don't seem to be getting anywhere.
13 Answers
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