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How to copy from CSV file to PostgreSQL table with headers in CSV file?
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@Exocom good catch. Since I'm never an admin or superuser for DBs on the postgres systems I use (the pgadmin makes me owner of the databases I use and gives me limited privileges/roles) I must have used `\COPY'. Cheers
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str.startswith with a list of strings to test for
...supply a tuple of strings to test for:
if link.lower().startswith(("js", "catalog", "script", "katalog")):
From the docs:
str.startswith(prefix[, start[, end]])
Return True if string starts with the prefix, otherwise return False. prefix can also be a tuple of prefixes to look for.
Be...
Python convert tuple to string
...n(...)
S.join(iterable) -> str
Return a string which is the concatenation of the strings in the
iterable. The separator between elements is S.
>>>
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How do you do natural logs (e.g. “ln()”) with numpy in Python?
Using numpy, how can I do the following:
4 Answers
4
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How to use split?
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Documentation can be found e.g. at MDN. Note that .split() is not a jQuery method, but a native string method.
If you use .split() on a string, then you get an array back with the substrings:
var str = 'something -- something_else';
var...
LINQ - Convert List to Dictionary with Value as List
... answered Aug 23 '10 at 15:40
casperOnecasperOne
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Matplotlib transparent line plots
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I can't see where the alpha parameter is documented. Could you update the answer to include where this is documented?
– Alex Spurling
Dec 13 '17 at 13:45
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How to modify memory contents using GDB?
I know that we can use several commands to access and read memory: for example, print, p, x...
3 Answers
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How to check if a string starts with one of several prefixes?
...hing via regular expressions is much more expensive than raw string method calls. Exact figures I cannot give, but this is the general consensus.
– klaar
Mar 21 '16 at 15:47
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How to make execution pause, sleep, wait for X seconds in R?
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Why you cannot do just Sys.sleep(10)?
– Léo Léopold Hertz 준영
Nov 10 '16 at 14:46
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