[Eric] Eric4 vs Python3.1

[detlev]

On Mittwoch, 3. März 2010, Zhu Sha Zang wrote:
> Hey dudes, i'm trying to run this simple "program" in python (of
> course inside eric4).
> /
> # coding: utf8
> 
> import cmath
> import math
> import sys
> import unicodedata
> import codecs
> 
> 
> def get_float(msg, allow_zero):
>     x = None
>     while x is None:
>         try:
>             x = float(input(msg))
>             if not allow_zero and abs(x) < sys.float_info.epsilon:
>                 print("zero is not allowed")
>                 x = None
>         except ValueError as err:
>             print (err)
>     return x
> 
> print ("ax\N{SUPERSCRIPT TWO} + bx + c = 0")
> a = get_float("enter a: ", False)
> b = get_float("enter b: ", True)
> c = get_float("enter c: ", True)
> 
> x1 = None
> x2 = None
> 
> discriminant = (b**2) - (4*a*c)
> 
> if discriminant == 0:
>     x1 = -(b / (2*a))
> else:
>     if discriminant > 0:
>         root = math.sqrt(discriminant)
>     else:
>         root = cmath.sqrt(discriminant)
>     x1 = (-b + root) / (2*a)
>     x2 = (-b - root) / (2*a)
> 
> equation = ("{0}x\N{SUPERSCRIPT TWO} + {1}x + {2} = 0" " \N{RIGHTWARDS
> ARROW} x = {3}").format(a, b, c, x1)
> if x2 is not None:
>     equation += " or x = {0}".format(x2)
> print(equation)/
> 
> But, when i try run scrip receive this message.
> 
> The debugged program raised the exception unhandled KeyError
> "SUPERSCRIPT TWO"
> File: /media/pendrive/PYTHON/quadratic.py, Line: 46
> 
> 
> Testing inside a shell with python prompt the error is the same.
> Testing with python3 or python3.1 the program works well.
> 
> The question?
> 
> How i made Eric4 runs scripts using python3.1 instead python2 (2.6.4
> in here)??

Eric determines this based on the file extension (or the project type, if it 
is part of a project). These extensions may be configured on the Python page 
of the config dialog. 

If Python3 is the default Python I would recommend using eric5, which is the 
Python3 port of eric4 (with enhancements like py3flakes checks).

Detlev
-- 
Detlev Offenbach
detlev at die-offenbachs.de