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Skip rows during csv import pandas
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5s 15s 20d 6s 14n 10s USGS 08041780 2018-05-06 00:00 CDT 1.98 A
It would be nice if there was a way to automatically skip the n'th row as well as the n'th line.
As a note, I was able to fix my issue with:
import pandas as pd
ds = pd.read_csv(fname, comment='#', sep='\t', heade...
Which is the preferred way to concatenate a string in Python?
... out = bytearray()
for i in source:
out += i
# 10000 loops, best of 3: 98.5 µs per loop
%%timeit out = ""
for i in source:
out += i
# 10000 loops, best of 3: 161 µs per loop
## Repeat the tests with a larger list, containing
## strings that are bigger than the small string caching
## do...
No module named setuptools
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98
Install setuptools and try again.
try command:
sudo apt-get install -y python-setuptools
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Unnamed/anonymous namespaces vs. static functions
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Use of static keyword for that purpose is deprecated by the C++98 standard. The problem with static is that it doesn't apply to type definition. It's also an overloaded keyword used in different ways in different contexts, so unnamed namespaces simplify things a bit.
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Factory Pattern. When to use factory methods?
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98
Factory methods should be considered as an alternative to constructors - mostly when constructo...
Make a link use POST instead of GET
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98
You create a form with hidden inputs that hold the values to be posted, set the action of the f...
Accessing Object Memory Address
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Nick JohnsonNick Johnson
98.3k1616 gold badges123123 silver badges195195 bronze badges
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(-2147483648> 0) returns true in C++?
... that allowed using unsigned types for unsuffixed decimal constants. In C++98 it was int or long int. No unsigned types allowed. Neither C (starting from C99) nor C++ permits the compiler to use unsigned types in this context. Your compiler is, of course, free to use unsigned types if none of the si...
How to check command line parameter in “.bat” file?
... Historically note: [%1]==[-b] and "%1"=="-b" were the same for win 98 and earlier MS/PC-DOS systems batch scripts. Since win 2000/NT introduced syntax if "%~1"=="-b" where double quotes have special meaning that is the way you should code scripts as it provides more robust protection. Double...
Why does Google prepend while(1); to their JSON responses?
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98
It seems to me a better way would be to let the server only send the JSON if the correct header has been set. You can do that in an AJAX ca...