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Pip freeze vs. pip list
...ecific format for pip to understand, which is
feedparser==5.1.3
wsgiref==0.1.2
django==1.4.2
...
That is the "requirements format".
Here, django==1.4.2 implies install django version 1.4.2 (even though the latest is 1.6.x).
If you do not specify ==1.4.2, the latest version available would be in...
How do I break out of a loop in Scala?
...f loops.
Suppose you want to sum numbers until the total is greater than 1000. You try
var sum = 0
for (i <- 0 to 1000) sum += i
except you want to stop when (sum > 1000).
What to do? There are several options.
(1a) Use some construct that includes a conditional that you test.
var sum...
How are cookies passed in the HTTP protocol?
...
302
The server sends the following in its response header to set a cookie field.
Set-Cookie:name=v...
Dictionaries and default values
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edited Jan 23 '19 at 5:30
Solomon Ucko
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answere...
Java regular expression OR operator
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edited Jan 9 '10 at 0:57
answered Jan 9 '10 at 0:46
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Upload file to FTP using C#
...ernatives
– Pacharrin
Apr 16 '19 at 0:29
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Test whether string is a valid integer
...
[[ $var =~ ^-?[0-9]+$ ]]
The ^ indicates the beginning of the input pattern
The - is a literal "-"
The ? means "0 or 1 of the preceding (-)"
The + means "1 or more of the preceding ([0-9])"
The $ indicates the end of the input pattern
...
Convert unix time to readable date in pandas dataframe
...
230
These appear to be seconds since epoch.
In [20]: df = DataFrame(data['values'])
In [21]: df.co...
typecast string to integer - Postgres
...lesced field such as, for example:-
SELECT CAST(coalesce(<column>, '0') AS integer) as new_field
from <table>
where CAST(coalesce(<column>, '0') AS integer) >= 10;
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im...
How do I set a cookie on HttpClient's HttpRequestMessage
...
Todd Menier
30.2k1414 gold badges124124 silver badges146146 bronze badges
answered Sep 11 '12 at 16:57
Darin Dimit...