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antonia_alessandra 03-30-2013 08:05 PM
Invalid Syntax Error on Python Function
 
Hey guys,

I have been trying to write a function in python and keep getting an invalid syntax error and I'm not sure why. This is my current code:
Code:
def aero_top(x):
    y =(0.102/0.20)*((0.29690*sqrt(x))-(0.126*x)- 
    (0.35160*(x**2))+ (0.28430*(x**3))-
    (0.10150*(x**4))) 
    if x = 1.0
      y = 0.0
    x = x/5.
    y = y/5.
    return (x,y,0.0)
The error I keep getting is:
Code:
File "NACA_Aerofoil_Spyder.py", line 22
    if x = 1
        ^
SyntaxError: invalid syntax
Any ideas??
Thanks.

rosehosting.com 03-31-2013 01:17 AM
Quote:
Originally Posted by antonia_alessandra (Post 4921916)
if x = 1
^
SyntaxError: invalid syntax
Try using this code:

if x == 1:

antonia_alessandra 03-31-2013 02:38 AM
That worked! Thank you!
Any idea why I had to write it that way?

rosehosting.com 03-31-2013 02:49 AM
The Python language has many similarities to Perl, Java and C. However, there are some definite differences between the languages.
Many Python constructs, like if, while, and for, require a terminating colon : . Also, '=' is the assignment operator while '==' is the 'is equal to' comparison operator.


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