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Top Forums Programming Appending a column in xlsx file using Python Post 302999548 by durden_tyler on Thursday 22nd of June 2017 11:10:12 AM
Old 06-22-2017
Quote:
Originally Posted by nans
Is there a way to append an existing xlsx worksheet to add data from a text file ?
I have an excel file for which I need to manipulate the first worksheet based on a text file.
I match the text file to the xlsx and write the 'Scores' column in the xlsx sheet and save the workbook.
For those 'Pos' not present in the the text file, the excel sheet would have to print 'Unknown' with current date for it.


The tab-text file looks like this

Code:
Pos    Ref    Alt    Score
44    a    bb    1 
57    c    ab    4 
64    d    d    5

and the excel sheet has several columns

Code:
Col1.. Col2..   Pos    Ref    Alt ... Score... Col26
id2.. 57    c    ab...    ... 
id3.. 64    d    d...  ... 
id4.. 103  e g ...    ...

So the output will look like

Code:
Col1.. Col2..   Pos    Ref    Alt ... Score... Col26
 id2.. 57    c    ab...    4 ... 
id3.. 64    d    d... 5 ... 
id4.. 103  e g ...   Unknown_June2017 ...

What I am currently doing is converting the worksheet to text file, comparing the two text files and then writing the result text file back to excel workbook. As there are several excel files , this is a bit inefficient. Any help is appreciated. Thank you.
Could you post the code you attempted?
 

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PYDOC(1)						    BSD General Commands Manual 						  PYDOC(1)

NAME
pydoc -- the Python documentation tool SYNOPSIS
pydoc name pydoc -k keyword pydoc -p port pydoc -g pydoc -w module ... pydoc --help DESCRIPTION
pydoc shows text documentation on something related to python(1). The name argument may be the name of a Python keyword, topic, function, module, or package, or a dotted reference to a class or function within a module or module in a package. If name contains a '/', it is used as the path to a Python source file to document. If name is 'keywords', 'topics', or 'modules', a listing of these things is displayed. OPTIONS
-k keyword Search for a keyword in the synopsis lines of all available modules. -p port Start an HTTP server on the given port on the local machine. -g Pop up a graphical interface for finding and serving documentation. -w module ... Write out the HTML documentation for a module to a file in the current directory. If module contains a '/', it is treated as a filename; if it names a directory, documentation is written for all the contents. --help Prints out a help message. AUTHOR
Moshe Zadka, based on "pydoc --help" SEE ALSO
python(1) Dec 19, 2003
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