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In PHP what does it mean by a function being binary-safe?
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3 Answers
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Active
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How to make Google Chrome JavaScript console persistent?
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360
If anyone's still looking for this, I'm on Chrome 15.0.874.58 beta-m and I have a checkbox in ...
how do you filter pandas dataframes by multiple columns
...={}
for g in ['male', 'female']:
dic[g]=defaultdict(dict)
for y in [2013, 2014]:
dic[g][y]=df[(df[Gender]==g) & (df[Year]==y)] #store the DataFrames to a dict of dict
EDIT:
A demo for your getDF:
def getDF(dic, gender, year):
return dic[gender][year]
print genDF(dic, 'male', 2014)...
How do I create a Python function with optional arguments?
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Try calling it like: obj.some_function( '1', 2, '3', g="foo", h="bar" ). After the required positional arguments, you can specify specific optional arguments by name.
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Error-Handling in Swift-Language
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Swift 2 & 3
Things have changed a bit in Swift 2, as there is a new error-handling mechanism, that is somewhat more similar to exceptions but different in detail.
1. Indicating error possibility
If function/method wants to indicate ...
How to thoroughly purge and reinstall postgresql on ubuntu? [closed]
...er Port Status Owner Data directory Log file
11 main 5432 online postgres /var/lib/postgresql/11/main /var/log/postgresql/postgresql-11-main.log
$ sudo systemctl stop postgresql@11-main
$ sudo pg_dropcluster --stop 11 main
$ sudo pg_createcluster --start 11 main
Option B
If yo...
In Python, what is the difference between “.append()” and “+= []”?
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163
For your case the only difference is performance: append is twice as fast.
Python 3.0 (r30:6750...
How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
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1183
I think you're looking for dispatch_after(). It requires your block to accept no parameters, bu...
One line ftp server in python
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137
Obligatory Twisted example:
twistd -n ftp
And probably useful:
twistd ftp --help
Usage: tw...