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Pandas read_csv low_memory and dtype options
...: int, "username": "string"})
ValueError: invalid literal for long() with base 10: 'foobar'
dtypes are typically a numpy thing, read more about them here:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.dtype.html
What dtypes exists?
We have access to numpy dtypes: float, int, bool, time...
Simple insecure two-way data “obfuscation”?
...eep honest people honest, but something a little stronger than ROT13 or Base64 .
17 Answers
...
Keep only date part when using pandas.to_datetime
...stored as an array of pointers and is inefficient relative to a pure NumPy-based series.
Since your concern is format when writing to CSV, just use the date_format parameter of to_csv. For example:
df.to_csv(filename, date_format='%Y-%m-%d')
See Python's strftime directives for formatting conven...
How to convert numbers between hexadecimal and decimal
... @ColeJohnson int.Parse doesn't have an option for you to specify the base as an int, just as one of a few valid NumberStyles. For base 16, either is just fine, but as a general solution, it's good to know how both work.
– Tim S.
Oct 21 '13 at 20:44
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/usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.15' not found
...
Yes, there is. An apt-get based solution to this problem is described here: superuser.com/questions/310809/…
– aroth
Mar 5 '13 at 4:09
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Using curl to upload POST data with files
...eam' . $eol; //Same before row
$BODY.= 'Content-Transfer-Encoding: base64' . $eol . $eol; // we put the last Content and 2 $eol,
$BODY.= chunk_split(base64_encode(file_get_contents($file_url))) . $eol; // we write the Base64 File Content and the $eol to finish the data,
$BODY...
How fast is D compared to C++?
...s");
return 0;
}
I compiled each of these tests using an LLVM-based compiler, since LDC seems to be the best option for D compilation in terms of performance. On my x86_64 Arch Linux installation I used the following packages:
clang 3.6.0-3
ldc 1:0.15.1-4
dtools 2.067.0-2
I used the...
XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serv
...if there will be greater demand for this with Google's push toward browser-based apps. I think demand will only grow.
– Courtney Christensen
Jan 31 '11 at 23:54
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How does this giant regex work?
...\x65\x36\x34\x5F\x64\x65\x63\x6F\x64\x65\x28
is acutally:
eval(gzinflate(base64_decode(
This is the code will print out the source code for this backdoor. However i would not execute the resulting PHP code, unless it is on a disposable virtual machine.
<?php
print gzinflate(base64_decode(...
What is the correct way of using C++11's range-based for?
What is the correct way of using C++11's range-based for ?
4 Answers
4
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