RE: Unable to lookup keys in dictionary

[Andreas Tawn]

>I am trying to run p4python API on top of python 2.5.2 and am
extracting a dictionary from perforce. The following code returns the
output that follows it:

>
from P4 import P4, P4Exception
p4 = P4()
p4.port = "erased" #deleted
p4.user = "erased" #deleted

try:
p4.connect()
info = p4.run("info")
print info
p4.disconnect()
except P4Exception:
for e in p4.errors:
print e


Output:


[{'userName': 'mfielding', 'clientRoot': 'c:\\perforce',

'monitor': 'enabled',

> 'serverRoot': 'H:\\p4root\\', 'serverVersion':

'P4D/NTX64/2007.3/143793 (2008/01/

> 21)', 'serverDate': '2008/08/12 11:18:56 -0400 Eastern

Daylight Time', 'clientAd

> dress': '10.24.20.97:1918', 'serverLicense': 'Mad Doc

Software, Inc. 140 users (

> support expired 2008/05/31) ', 'serverAddress':

'rsgnwep4s1.rockstar.t2.corp:166

> 6', 'clientHost': 'nwew-mfielding', 'security':

'enabled', 'password': 'enabled'

> , 'clientName': 'mfielding'}]

I did this to test that I was receiving a dictionary back from

the server, which I clearly am. I then followed by adding the following
lines to the code:

>

print info
s = info[serverVersion]
print s
p4.disconnect()

I would expect this to print out P4D/NTX64/2007.3/143793

(2008/01/23), but instead it spits out the following error:

>

Traceback (most recent call last):
File "test.py", line 10, in <module>
s = info[serverVersion]
NameError: name 'serverVersion' is not defined


Changing "s = info[serverVersion]" to "s =

info['serverVersion']" only gives me another error, which is:

>

Traceback (most recent call last):
File "test.py", line 10, in <module>
s = info['serverVersion']
TypeError: list indices must be integers


If anyone has any idea what is going on here, I would appreciate

the help. I've spent a few hours over the past two days trying to figure
this little quirk out, but to no avail.

It looks like you're getting a list with the dictionary as the only
element.

Try...

s = info[0]['serverVersion']

Cheers,

Drea