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How to write to an existing excel file without overwriting data (using pandas)?
...riter gives a clue that something like this might work out:
import pandas
from openpyxl import load_workbook
book = load_workbook('Masterfile.xlsx')
writer = pandas.ExcelWriter('Masterfile.xlsx', engine='openpyxl')
writer.book = book
## ExcelWriter for some reason uses writer.sheets to access th...
Why can I pass 1 as a short, but not the int variable i?
...ns, the last one isn't.
The C# specification allows an implicit conversion from int to short for constants, but not for other expressions. This is a reasonable rule, since for constants the compiler can ensure that the value fits into the target type, but it can't for normal expressions.
This rule i...
onSaveInstanceState () and onRestoreInstanceState ()
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If I understand correctly, this is what you are doing: From B you call startActivity(A). Then from A you call finish() to get back to B. Right? In that case Your first activity, B will not have been destroyed, and neither onCreate() nor onRestoreInstanceState() will be called. Th...
Deserializing a JSON into a JavaScript object
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Modern browsers support JSON.parse().
var arr_from_json = JSON.parse( json_string );
In browsers that don't, you can include the json2 library.
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Add a default value to a column through a migration
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Besides that, you need to specify a from: and to: if you want it to be reversible :)
– radubogdan
Mar 27 '17 at 11:34
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Eclipse error: 'Failed to create the Java Virtual Machine'
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in eclipse.ini, changing reducing -Xmx to 512m from 1024 fixed the issue for me. The system was having 1GB RAM.
– Dexter
Jul 17 '14 at 9:26
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Why do I have to access template base class members through the this pointer?
...t considered for search unless explicitly requested. This stops everything from being dependent just because it could be found in a dependent base. It also has the undesirable effect that you're seeing - you have to qualify stuff from the base class or it's not found. There are three common ways to ...
What's wrong with using == to compare floats in Java?
...e best answer so far, but it is still flawed. Where do you get the epsilon from?
– Michael Piefel
Apr 27 '15 at 15:34
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What is an abstract class in PHP?
...bstract".
The purpose of this is to provide a kind of template to inherit from and to force the inheriting class to implement the abstract methods.
An abstract class thus is something between a regular class and a pure interface. Also interfaces are a special case of abstract classes where ALL met...
Is there any kind of hash code function in JavaScript?
...mber + total ticks - then have a set of functions to add/remove the object from the array.
– Sugendran
Oct 12 '08 at 0:52
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