On 30.04.2010 04:22, * elsa:
Hi people,
I'm having a problem getting the info I need out of a file.
I've opened the file with f=open('myFile','r').
Next, I take out the first line with line=f.readline()
line looks like this:
'83927 300023_25_5_09_FL 9086 9134 F3LQ2BE01AQLXF 1 49 + 80
ZA8Z89HIB7M'
I then split it into parts with parts = line.split()
['83927', '300023_25_5_09_FL', '9086', '9134', 'F3LQ2BE01AQLXF', '1',
'49', '+', '80', 'ZA8Z89HIB7M']
Now, I need to test whether I can call int(parts[0]) or not. Some of
the lines in my file start with a value which represents and integer
(as above), while others are just strings of characters. I want to
extract just the lines like the one above, that start with an integer.
Any suggestions?
<code>
#Py3
lines = (
"83927 300023_25_5_09_FL 9086 9134 F3LQ2BE01AQLXF 1 49 + 80 ZA8Z89HIB7M",
"blah blah",
"2 small tortoises"
)
for line in lines:
parts = line.split()
if len( parts ) > 0:
try:
v = int( parts[0] )
print( "OK " + line )
except ValueError:
print( "! " + line )
</code>
Cheers & hth.,
- Alf
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