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ERROR: Error 1005: Can't create table (errno: 121)
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I searched quickly for you, and it brought me here. I quote:
You will get this message if you're trying to add a constraint with a
name that's already used somewhere else
To check constraints use the following SQL query:
SELECT
constraint_n...
Reusing output from last command in Bash
Is the output of a Bash command stored in any register? E.g. something similar to $? capturing the output instead of the exit status.
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pandas GroupBy columns with NaN (missing) values
...the same placeholder hack).
However, as described in another answer, from pandas 1.1 you have better control over this behavior, NA values are now allowed in the grouper using dropna=False
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What are the differences between segment trees, interval trees, binary indexed trees and range trees
...re differences between segment trees, interval trees, binary indexed trees and range trees in terms of:
2 Answers
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Confused about __str__ on list in Python [duplicate]
Coming from a Java background, I understand that __str__ is something like a Python version of toString (while I do realize that Python is the older language).
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How to prevent auto-closing of console after the execution of batch file
What command can I put at the end of a batch file to prevent auto-closing of the console after the execution of the file?
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Swift days between two NSDates
I'm wondering if there is some new and awesome possibility to get the amount of days between two NSDates in Swift / the "new" Cocoa?
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What is the most “pythonic” way to iterate over a list in chunks?
...rks for any iterable (not just sequences as the above code); it is concise and probably just as fast or even faster. Though it might be a bit obscure (unclear) for people unfamiliar with itertools module.
– jfs
Jan 12 '09 at 14:39
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How to extract custom header value in Web API message handler?
I currently have a message handler in my Web API service that overrides 'SendAsync' as follows:
10 Answers
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Get Substring - everything before certain char
... Some example strings are below. The length of the string before - varies and can be any length
8 Answers
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