Python syntax error using 'with'

Question

I'm trying to compile a project but I'm getting a invalid syntax error during tests with arrow point at the 'h' in with. I haven't written the code and it is fairly years old.

d = Gnuplot.Data(pnts,title=im_title,with='candlesticks')

I tried changing with to something else but then I got different errors. What can I do to fix this issue?

with is a reserved word for Python interpreter. Without error traceback we can't say anything about "different errors". — Łukasz Rogalski
– Łukasz Rogalski, Commented Apr 23, 2015 at 19:24
I doubt this class constructor uses with as a keyword argument, because with is a Python keyword. Double-check the API. — TigerhawkT3
– TigerhawkT3, Commented Apr 23, 2015 at 19:24

vaultah · Accepted Answer · 2015-04-23 20:03:58Z

4

Apparently this code was written before with became one of the reserved keywords.

~~The (possible) workaround:~~

~~d = Gnuplot.Data(pnts, **{'title': im_title, 'with': 'candlesticks'})~~

Just checked, it won't work - they were using with as a variable name extensively until Gnuplot.py 1.8.

The solution for Gnuplot.py 1.8+ is to use with_ argument:

d = Gnuplot.Data(pnts, title=im_title, with_='candlesticks')

edited Apr 23, 2015 at 20:03

answered Apr 23, 2015 at 19:24

vaultah

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1 Comment

TigerhawkT3 Over a year ago

"A couple years" is therefore more like ten years.

Pedro Lobito · Accepted Answer · 2015-04-23 19:31:24Z

3

In PEP 8 - Style Guide for Python Code, the following guidance appears in the section Descriptive: Naming Styles :

single_trailing_underscore_ : used by convention to avoid conflicts with Python keyword

i.e.:

d = Gnuplot.Data(pnts,title=im_title,with_='candlesticks')

answered Apr 23, 2015 at 19:31

Pedro Lobito

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