大约有 41,200 项符合查询结果（耗时：0.0332秒） [XML]
How to JSON serialize sets?
...owing that it can handle lists, dicts, and sets:
>>> data = [1,2,3, set(['knights', 'who', 'say', 'ni']), {'key':'value'}, Decimal('3.14')]
>>> j = dumps(data, cls=PythonObjectEncoder)
>>> loads(j, object_hook=as_python_object)
[1, 2, 3, set(['knights', 'say', 'who', 'n...
Finding all possible combinations of numbers to reach a given sum
...ning, target, partial + [n])
if __name__ == "__main__":
subset_sum([3,9,8,4,5,7,10],15)
#Outputs:
#sum([3, 8, 4])=15
#sum([3, 5, 7])=15
#sum([8, 7])=15
#sum([5, 10])=15
This type of algorithms are very well explained in the following Standford's Abstract Programming lec...
Iterating over dictionaries using 'for' loops
...
13 Answers
13
Active
...
Writing outputs to log file and console
...
exec 3>&1 1>>${LOG_FILE} 2>&1
would send stdout and stderr output into the log file, but would also leave you with fd 3 connected to the console, so you can do
echo "Some console message" 1>&3
to wr...
Why isn't my Pandas 'apply' function referencing multiple columns working? [closed]
...
381
Seems you forgot the '' of your string.
In [43]: df['Value'] = df.apply(lambda row: my_test(r...
Access an arbitrary element in a dictionary in Python
...
13 Answers
13
Active
...
No module named setuptools
...ific system.
– rob
May 2 '16 at 19:53
25
Debian/ubuntu: apt-get install -y python-setuptools
...
Should I use encoding declaration in Python 3?
Python 3 uses UTF-8 encoding for source-code files by default. Should I still use the encoding declaration at the beginning of every source file? Like # -*- coding: utf-8 -*-
...
How can I install an older version of a package via NuGet?
... |
edited Jun 25 at 6:36
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
...