Ricardo Aráoz wrote:
MRAB wrote:
Omer Khalid wrote:
Hi,
I am having a very strange problem with modifying a variable in a
list in my program. Here is the code:
# a list that contains dictionary objects
jobs = []
index=5
for each in range(index):
jobs.append({'v':0})
some_function(index):
if jobs[index]['v'] == 0:
# set it to 1
jobs[index]['v'] = 1
print "Set to 1"
else:
print "Already set to 1"
loop():
index=0
for each in range(len(jobs)):
some_function(index)
index +=1
Apparently, the jobs[index]['v'] never get updated in the
some_function but the print statement afterwards get printed...
What's really surprising is that there are no errors or exceptions
and my my program runs in a single thread...so i have been unable to
explain this behavior.
Any insight would be much appreciated!
Well, when I insert the missing 'def's in the function definitions, it
works for me.
Hi Omer, what he is trying to convey in his rude manner is that you are
missing "def" in your function definitions. It is probably a beginners
mistake.
That is :
from "some_function(index): "
to "def some_function(index): "
from "loop(): "
to "def loop(): "
I have not tried your code so you should believe him when he states he
has actually run the code.
HTH
Omer says "the print statement afterwards get printed", but the code
provided would have raised a SyntaxError, so omitting the 'def's can't
be the cause of the actual problem reported.
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