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How to write to an existing excel file without overwriting data (using pandas)?
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Pandas docs says it uses openpyxl for xlsx files. Quick look through the code in ExcelWriter gives a clue that something like this might work out:
import pandas
from openpyxl import load_workbook
book = load_workbook('Masterfile.xlsx')
writer = pandas.ExcelW...
Merge multiple lines (two blocks) in Vim
...em to lines a..b . If you prefer a pseudocode explanation: [a[i] + b[i] for i in min(len(a), len(b))]
9 Answers
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Example for boost shared_mutex (multiple reads/one write)?
...ly lock them out when an update is needed (the updating thread could wait for the other threads to finish).
6 Answers
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How to write very long string that conforms with PEP8 and prevent E501
As PEP8 suggests keeping below the 80 column rule for your python program, how can I abide to that with long strings, i.e.
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How exactly does work?
.../2016
Consider this answer outdated. Refer to other answers on this post for information relevant to newer browser version.
Basically, defer tells the browser to wait "until it's ready" before executing the javascript in that script block. Usually this is after the DOM has finished loading and ...
Time complexity of Euclid's Algorithm
...lty deciding what the time complexity of Euclid's greatest common denominator algorithm is. This algorithm in pseudo-code is:
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String.Replace ignoring case
I have a string called "hello world"
16 Answers
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How to easily map c++ enums to strings
...ngs, see this post.
Otherwise, a std::map<MyEnum, char const*> will work nicely. (No point in copying your string literals to std::strings in the map)
For extra syntactic sugar, here's how to write a map_init class. The goal is to allow
std::map<MyEnum, const char*> MyMap;
map_init(MyM...
“unpacking” a tuple to call a matching function pointer
I'm trying to store in a std::tuple a varying number of values, which will later be used as arguments for a call to a function pointer which matches the stored types.
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How to Query an NTP Server using C#?
...ng C# to get the Date Time of the NTP Server returned as either a string or as a DateTime .
6 Answers
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