+0 But... Do we also add try for:, try if:, try while:, etc.? Not terrible, but potentially terrible. On Thu, Feb 26, 2009 at 9:36 AM, Daniel Stutzbach <daniel@stutzbachenterprises.com> wrote:
Around two-thirds of the time, whenever I use the wonderful new "with" construct, it's enclosed in a "try-except" block, like this:
try: with something as f: many lines of code except some_error: handle error
The "with" statement is great, but it results in the bulk of the code being indented twice. I'd like to propose a little syntactic sugar, the "try with":
try with something as f: many lines of code except some_error: handle error
It saves one line of vertical space, and gets rid of an indentation level for the bulk of the code that rests within the "with" statement. Thoughts?
Here's a short script to count how many uses of "with" within your code are immediately preceded by "try":
#!/usr/bin/python import re, sys
re_with = re.compile(r'(try:[ \t]*)?[\r\n]+[ \t]+with ')
try_with = 0 total = 0 for fname in sys.argv[1:]: data = open(fname).read() for match in re_with.findall(data): if match: try_with += 1 total += 1
print 'try-with:', try_with, 'out of:', total, '(', try_with*100.0/total,'%)'
Usage: Cashew:~$ /tmp/count_try_with.py *.py try-with: 17 out of: 25 ( 68.0 %)
-- Daniel Stutzbach, Ph.D. President, Stutzbach Enterprises, LLC
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