how do i fix this invalid arguement error
Steve D'Aprano
steve+python at pearwood.info
Sat Nov 26 19:06:48 EST 2016
On Sun, 27 Nov 2016 03:12 am, junkone1 at gmail.com wrote:
> import csv
> with open('\\192.168.0.1\fe18cb0618cabd41\ninjatrader$EURUSDTestRun
> 2016-11-25-11-11.csv','r') as f:
\f inserts a FORMFEED character, ASCII code 12. \n inserts a LINEFEED
character, or newline, ASCII code 10. I believe that on Windows, both are
illegal in file names. And \\ inserts a single backslash.
You have three solutions:
(1) Use forward slashes, which Windows accepts as well:
'//192.168.0.1/fe18cb0618cabd41/ninjatrader$EURUSDTestRun
2016-11-25-11-11.csv'
(2) Use a "raw string" to disable most (but not all) backslash escapes:
r'\\192.168.0.1\fe18cb0618cabd41\ninjatrader$EURUSDTestRun
2016-11-25-11-11.csv'
The problem with raw strings is that you cannot end a string with a
backslash, so you cannot write:
# this gives a syntax error
r'C:\My Documents\directory\'
(3) Or escape all your backslashes with more backslashes:
'\\\\192.168.0.1\\fe18cb0618cabd41\\ninjatrader$EURUSDTestRun
2016-11-25-11-11.csv'
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
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