Break lines?

[saneman]

I have made this string:


TITLE  = 'Efficiency of set operations: sort model,
 (cphstl::set::insert(p,e)^n cphstl::set::insert(e)), integer'

But I am not allowed to break the line like that:

IndentationError: unexpected indent

How do I break a line?
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Re: Break lines?

[saneman]

Tim Chase wrote:
>> I have made this string:
>>
>> TITLE  = 'Efficiency of set operations: sort model,
>>  (cphstl::set::insert(p,e)^n cphstl::set::insert(e)), integer'
>>
>> But I am not allowed to break the line like that:
>>
>> IndentationError: unexpected indent
>>
>> How do I break a line?
> 
> Depends on what you want.  You can embed running strings with newlines 
> using triple-quotes (either single- or double-quotes):
> 
>  TITLE = """Efficiency...
>(cphstl:..."""
> 
> 
> Or you can use string concatenation using line-continuations:
> 
>  TITLE = "Efficiency..." \
>"(cphstl:..."
> 
> or using parens
> 
>  TITLE = ("Efficiency..."
>"(cphstl:...")
> 
> 
> 
> I like the clean'ness of the first version, but sometimes get irked by 
> it including my leading whitespace (there are some workarounds, but all 
> involve more than trivial effort).  I tend to use the 2nd in the case 
> you describe, but usually using the 3rd version in all other cases where 
> it's as a parameter to a function call or some other bracketed/braced 
> construct.
> 
> -tkc
> 
> 

Ok thanks! Btw why double quotes " instead of single ' ?
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Platform independent code?

[saneman]

I have read that Python is a platform independent language.  But on this 
page:

http://docs.python.org/tut/node4.html#SECTION00422

it seems that making a python script executable is platform dependant:

2.2.2 Executable Python Scripts
On BSD'ish Unix systems, Python scripts can be made directly executable, 
like shell scripts, by putting the line


#! /usr/bin/env python
(assuming that the interpreter is on the user's PATH) at the beginning of 
the script and giving the file an executable mode. The "#!" must be the 
first two characters of the file. On some platforms, this first line must 
end with a Unix-style line ending ("\n"), not a Mac OS ("\r") or Windows 
("\r\n") line ending. Note that the hash, or pound, character, "#", is used 
to start a comment in Python.

The script can be given an executable mode, or permission, using the chmod 
command:


$ chmod +x myscript.py



Are there any guidelines (API'S) that gurantees that the python code will be 
platform independent? 


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