Can't get items added to dictionary probably easy fix

Dev Shed Forums Sponsor:

November 16th, 2012, 12:15 PM

Murtasma

Registered User

Join Date: Nov 2012

Posts: 8

Time spent in forums: 58 m 45 sec
Reputation Power: 0

Can't get items added to dictionary probably easy fix

Code:

import csv
file_shortcode = "some file"

rFile = open(file_shortcode,"rb")
reader = csv.reader(rFile)
rownum = 0
shortcode = {}
for row in reader:
    #save header row.
    if rownum != 0:
        name = str(row[0])
        code = row[1]
        print name
        print code
        shortcode[str(row[0])] = str(row[1])
print row[0] + " " + row[1]
rownum += 1
rFile.close()
for item in shortcode:
    print shortcode[item]
print len(shortcode)

The following line is giving me issues

Code:

shortcode[str(row[0])] = str(row[1])

I can't seem to figure out why I can't add a key and value to my dictonary object doing this. I've testing added a item like this

Code:

shortcode["user"] = "code"

and that works just fine however when I try and stick the same data from my csv file into the dictonary object nothing gets added. The code below

Code:

        name = str(row[0])
        code = row[1]

also does not appear to work but the print statement does

Code:

print row[0] + " " + row[1]

what am I doing wrong?

November 16th, 2012, 12:43 PM

Purity_Lake

Contributing User

Join Date: Mar 2012

Posts: 33

Time spent in forums: 8 h 25 m 17 sec
Reputation Power: 2

what error are you getting?

November 16th, 2012, 12:45 PM

Murtasma

Registered User

Join Date: Nov 2012

Posts: 8

Time spent in forums: 58 m 45 sec
Reputation Power: 0

Quote:

Originally Posted by Purity_Lake

what error are you getting?

Sorry forgot to mention. I'm not getting an error there just isn't any data in the dictionary when there should be.

Code:

for item in shortcode:
    print shortcode[item]
print len(shortcode)

This cold should display the values but it displays nothing. Len(shortcode) returns 0.

if I add something manually however len produces 1

November 16th, 2012, 12:46 PM

SuperOscar

Contributing User

Join Date: Jul 2007

Location: Joensuu, Finland

Posts: 404

Time spent in forums: 1 Week 5 h 6 m 41 sec
Reputation Power: 65

Quote:

Originally Posted by Murtasma

Code:

for row in reader:
    #save header row.
    if rownum != 0:
        name = str(row[0])
        code = row[1]
        print name
        print code
        shortcode[str(row[0])] = str(row[1])
print row[0] + " " + row[1]
rownum += 1

what am I doing wrong?

Unless you copied-and-pasted wrong, “rownum += 1” is not inside the loop and thus only gets updated once.

Anyway, you’d be better off using the enumerate() function:

Code:

for rownum, row in enumerate(reader):

__________________
My armada: openSUSE 12.3 (home desktop, laptop, work desktop), Ubuntu 12.04 LTS (mini laptop), Debian GNU/Linux 7.0 (server), Mythbuntu 12.04 LTS (HTPC), Bodhi Linux 2.0 & Windows 7 Ultimate (test desktop), FreeBSD 9.1 (test server)

November 16th, 2012, 12:59 PM

Murtasma

Registered User

Join Date: Nov 2012

Posts: 8

Time spent in forums: 58 m 45 sec
Reputation Power: 0

Quote:

Originally Posted by SuperOscar

Unless you copied-and-pasted wrong, “rownum += 1” is not inside the loop and thus only gets updated once.

Anyway, you’d be better off using the enumerate() function:

Code:

for rownum, row in enumerate(reader):

Stupid tabs that's was the problem. The code is working now much appreciated!

Can't get items added to dictionary probably easy fix

Developer Shed Advertisers and Affiliates