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Don't understand why UnboundLocalError occurs (closure) [duplicate]
...ignments bind names, so can imports, so you may also get UnboundLocalError from a statement that uses an unbounded imported name. Example: def foo(): bar = deepcopy({'a':1}); from copy import deepcopy; return bar, then from copy import deepcopy; foo(). The call succeeds if the local import from cop...
How to convert a string from uppercase to lowercase in Bash? [duplicate]
I have been searching to find a way to convert a string value from upper case to lower case. All the search results show approaches of using tr command.
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How to convert a Title to a URL slug in jQuery?
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I have no idea where the 'slug' term came from, but here we go:
function convertToSlug(Text)
{
return Text
.toLowerCase()
.replace(/ /g,'-')
.replace(/[^\w-]+/g,'')
;
}
First replace will change spaces to hyphens, second replace...
Are PHP include paths relative to the file or the calling code?
...tion of A.PHP? That is, does it matter which file the include is called from, or only what the current working directory is- and what determines the current working directory?
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How to dynamically compose an OR query filter in Django?
From an example you can see a multiple OR query filter:
13 Answers
13
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Differences between fork and exec
...w program. It loads the program into the current process space and runs it from the entry point.
So, fork and exec are often used in sequence to get a new program running as a child of a current process. Shells typically do this whenever you try to run a program like find - the shell forks, then th...
Add one row to pandas DataFrame
... it to be in the dataframe.
>>> import pandas as pd
>>> from numpy.random import randint
>>> df = pd.DataFrame(columns=['lib', 'qty1', 'qty2'])
>>> for i in range(5):
>>> df.loc[i] = ['name' + str(i)] + list(randint(10, size=2))
>>> df
...
Remove the error indicator from a previously-validated EditText widget
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Wow, so aside from NullPointerException, null value was really put into good use. LOL
– ralphgabb
Nov 19 '18 at 4:11
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What is the best practice for dealing with passwords in git repositories?
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The typical way to do this is to read the password info from a configuration file. If your configuration file is called foobar.config, then you would commit a file called foobar.config.example to the repository, containing sample data. To run your program, you would create a local...
Minimizing NExpectation for a custom distribution in Mathematica
This relates to an earlier question from back in June:
1 Answer
1
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