Tracubik wrote:
hi, i've to convert from Pascal this code:
iterations=0;
count=0;
REPEAT;
iterations = iterations+1;
...
IF (genericCondition) THEN count=count+1;
...
CASE count OF:
1: m = 1
2: m = 10
3: m = 100
UNTIL count = 4 OR iterations = 20
i do something like this:
iterations = 0
count = 0
m_Switch = (1,10,100)
while True:
iterations +=1
...
if (genericCondition):
count +=1
...
try:
m = m_Switch[count-1]
except: pass
if count = 4 or iterations = 20
the problem is that when count = 4 m_Switch[4-1] have no value, so i use
the try..except.
Is there a better solution to solve this problem? and, generally
speaking, the try..except block slow down the execution of the program or
not?
Use a dict:
m_Switch = {1: 1, 2: 10, 3: 100}
and then catch the KeyError.
Don't use a bare 'except', catch the specific exception you want to
catch, and don't worry about the speed unless you discover that it's
real problem.
--
http://mail.python.org/mailman/listinfo/python-list
