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How to find all duplicate from a List? [duplicate]
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In .NET framework 3.5 and above you can use Enumerable.GroupBy which returns an enumerable of enumerables of duplicate keys, and then filter out any of the enumerables that have a Count of <=1, then select their keys to get back down to a...
Exception.Message vs Exception.ToString()
...se output, containing the exception type, the message (from before), a stack trace, and all of these things again for nested/inner exceptions. More precisely, the method returns the following:
ToString returns a representation of the current exception that is intended to be understood by humans. Wh...
How to paste in a new line with vim?
...] after [line] (default
current line). This always works |linewise|, thus
this command can be used to put a yanked block as
new lines.
:[line]pu[t]! [x] Put the text [from register x] before [line]
(default current l...
Python requests - print entire http request (raw)?
...ill be sent to the server".
One can use this to pretty print a request, like so:
import requests
req = requests.Request('POST','http://stackoverflow.com',headers={'X-Custom':'Test'},data='a=1&b=2')
prepared = req.prepare()
def pretty_print_POST(req):
"""
At this point it is completel...
MySql export schema without data
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Matteo Tassinari
16.3k55 gold badges5252 silver badges7676 bronze badges
answered May 30 '11 at 11:09
DaricDaric
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Batch Renaming of Files in a Directory
...ir, titlePattern % title + ext))
You could then use it in your example like this:
rename(r'c:\temp\xx', r'*.doc', r'new(%s)')
The above example will convert all *.doc files in c:\temp\xx dir to new(%s).doc, where %s is the previous base name of the file (without extension).
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How do I convert an enum to a list in C#? [duplicate]
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Chev
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answered Jul 22 '09 at 18:49
Jake PearsonJa...
How to randomly select an item from a list?
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Pēteris CaunePēteris Caune
36.6k66 gold badges5151 silver badges7676 bronze badges
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Disable password authentication for SSH [closed]
I'm looking for a way to disable SSH clients from accessing the password prompt as noted here .
5 Answers
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Is there a REAL performance difference between INT and VARCHAR primary keys?
...asurable performance difference between using INT vs. VARCHAR as a primary key in MySQL? I'd like to use VARCHAR as the primary key for reference lists (think US States, Country Codes) and a coworker won't budge on the INT AUTO_INCREMENT as a primary key for all tables.
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