[Tutor] Python Variables Changing in Other Functions
Prasad, Ramit
ramit.prasad at jpmchase.com
Wed May 25 22:49:10 CEST 2011
>> Having lots of += hanging around is a perfect example of a code smell (i.e. something in this code stinks, and we should change >>it). Part of being a good programmer is learning to recognize those bad smells and getting rid of them. Turns out, Python has a lot >>of nice built-in functions for the elimination of code smells. In this case, it's the enumerate function:
What happens if you are trying to write to an excel document with several different sections and need to keep track of things like last written row / current row? I could keep track of enumerations and then save them to a local variable and then append it but that seems about as funky. Is there a better way?
# pseudocode-ish
# Is this better?
blah = enumerate(raw_data)
For enumerate_value, data in blah:
sheet.write (base_row + enumerate_value , column, data)
base_row = blah[-1][0]
Ramit
Ramit Prasad | JPMorgan Chase Investment Bank | Currencies Technology
712 Main Street | Houston, TX 77002
work phone: 713 - 216 - 5423
This communication is for informational purposes only. It is not
intended as an offer or solicitation for the purchase or sale of
any financial instrument or as an official confirmation of any
transaction. All market prices, data and other information are not
warranted as to completeness or accuracy and are subject to change
without notice. Any comments or statements made herein do not
necessarily reflect those of JPMorgan Chase & Co., its subsidiaries
and affiliates.
This transmission may contain information that is privileged,
confidential, legally privileged, and/or exempt from disclosure
under applicable law. If you are not the intended recipient, you
are hereby notified that any disclosure, copying, distribution, or
use of the information contained herein (including any reliance
thereon) is STRICTLY PROHIBITED. Although this transmission and any
attachments are believed to be free of any virus or other defect
that might affect any computer system into which it is received and
opened, it is the responsibility of the recipient to ensure that it
is virus free and no responsibility is accepted by JPMorgan Chase &
Co., its subsidiaries and affiliates, as applicable, for any loss
or damage arising in any way from its use. If you received this
transmission in error, please immediately contact the sender and
destroy the material in its entirety, whether in electronic or hard
copy format. Thank you.
Please refer to http://www.jpmorgan.com/pages/disclosures for
disclosures relating to European legal entities.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/tutor/attachments/20110525/41a4d589/attachment.html>
More information about the Tutor
mailing list