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What's the difference between “groups” and “captures” in .NET regular expressions?
...am|pm)").
> Groups.Cast<Group>().
> Zip(Enumerable.Range(0, int.MaxValue), (g, n) => "[" + n + "] " + g);
{ "[0] 3:10pm", "[1] 3", "[2] 3", "[3] 10", "[4] 0", "[5] pm" }
So where's the 1?
Since there are multiple digits that match on the fourth group, we only "get at" ...
Delete the first three rows of a dataframe in pandas
... works but returns duplicate columns in the index df=pd.DataFrame({'v':np.arange(10).tolist()*2,'g':['a']*10+['b']*10});df.groupby('g').apply(lambda x: x.iloc[3:])
– citynorman
Aug 6 '17 at 22:24
...
How to enable local network users to access my WAMP sites?
...lt;/Directory>
Now assuming your local network subnet uses the address range 192.168.0.?
Add this line after Allow from localhost
Allow from 192.168.0
This will tell Apache that it is allowed to be accessed from any ip address on that subnet.
Of course you will need to check that your router is...
Replacing all non-alphanumeric characters with empty strings
...e that [^a-zA-Z] will replace characters not being itself in the character range A-Z/a-z. That means special characters like é, ß etc. or cyrillic characters and such will be removed.
If the replacement of these characters is not wanted use pre-defined character classes instead:
str.replaceAl...
List to array conversion to use ravel() function
...
create an int array and a list
from array import array
listA = list(range(0,50))
for item in listA:
print(item)
arrayA = array("i", listA)
for item in arrayA:
print(item)
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imp...
Flags to enable thorough and verbose g++ warnings
...something that I consider an error. For
instance, it triggers when using a range-based for loop on a vector
of classes. Return value optimization should take care of any
negative effects of this.
-Wconversion triggers on this code: short n = 0; n += 2; The
implicit conversion to int causes a warning...
Delete newline in Vim
...nly happen on the line the cursor is on. Alternatively, you can specify a range such as :11,15s/\n/ (lines 11-15) or :,+7s/\n/ (this line and the next seven) or :-3,s/\n/ (previous three lines and this one)... you get the idea
– Tristan
Oct 21 '10 at 1:03
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Getting Http Status code number (200, 301, 404, etc.) from HttpWebRequest and HttpWebResponse
...
You have to be careful, server responses in the range of 4xx and 5xx throw a WebException. You need to catch it, and then get status code from a WebException object:
try
{
wResp = (HttpWebResponse)wReq.GetResponse();
wRespStatusCode = wResp.StatusCode;
}
catch (We...
Javascript: Round up to the next multiple of 5
I need a utility function that takes in an integer value (ranging from 2 to 5 digits in length) that rounds up to the next multiple of 5 instead of the nearest multiple of 5. Here is what I got:
...
How do I put a variable inside a string?
...file2.pdf' etc. This is how it worked:
['file' + str(i) + '.pdf' for i in range(1,4)]
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