Printing nested dicts to CSV in Python -


i parsing text files , keeping track of number of programs, software versions, , counts of versions' occurrences, in following structure:

{excel: {'1.2.1':2, '2.1.1':55, '3.4.5':12},  adobe: {'1.1.1':4, '5.4.4':12, '4'3.3':8}[...]}

etc.

how can print neatly csv output this:

program,version,count excel,1.2.1,2 excel,2.1.1,55 excel,3.4.5,12 adobe,1.1.1,4 adobe,5.4.4,12 adobe,4.3.3,8

i have done lot of searching , haven't been able find need. appreciated!

edit:

here have tried, think comes close, isn't right based on output get:

for prod,version in products.iteritems():     p in prod:         v in version:             outfile.write('%s,%s,%d\n' % (p,v,version[v]))

where products name of outer dict.

thanks.

the hacky way:

def print_csv_data(data):   open('my_output', 'w') f:      f.write('program,version,count')      k, v in data.iteritems():         id, count in v.iteritems():            f.write(k+','+id+','+count)

i'd recommend looking @ csv module though better use, above approach can break document if ids or program names contain commas.

import csv  open('output.csv', 'w') csvfile:     fieldnames = ['program', 'version', 'count']     writer = csv.dictwriter(csvfile, fieldnames=fieldnames)     writer.writeheader()     k, v in data.iteritems():         id, count in v.iteritems():            f.write({'program':k, 'version':id, 'count':count})

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