Splitting Files with Python

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I've been recently needing to generate sql scripts from large Excel spreadsheets. But once the script is finished I've had issues getting SQL Management Studio to execute as large a script in a single run. The solution? Split up the file with a little Python that takes it's arguments like this:

ipy Splitter.py  LargeFile.sql 3

#import clr
#pass arguments like so:
# THISSCRIPT.PY FILE NUM_PARTS
# ipy Ringil.py LargeFile.sql 4

import sys

if(len(sys.argv) == 3):
    splits = int(sys.argv[2])
    f = open(sys.argv[1])
    data = f.readlines()
    lc = len(data)/splits
    print "number of lines", len(data)
    for c in range(0,splits):
        outstream = open("data" + str(c + 1) + ".sql", 'w')
        for line in data[:lc]: 
            outstream.write(line)
        outstream.close()
        del data[:lc]
    f.close()
else:
    print "Expected arguments: file and number of splits\n example: ipy Splitter.py LargeFile.sql 4"

 

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