Indentation errors with code block?

Question

I tried to define the following functions, but I keep getting:
error 000989 : Python syntax error: <value>.

So apparently my code has improper syntax. I've tried the following:

def yieldCalc(value):
 if (value=1):
     return 6.2
  elif (value=2):
     return 7.9
  else:
     return 8.21

Also

def yieldCalc(value):
 if (value=1):
     return 6.2
  elif (value=2):
     return 7.9
 else:
     return 8.21

And

def yieldCalc(value):
 if (value=1):
     return 6.2
 elif (value=2):
     return 7.9
 else:
     return 8.21

What is the proper way to indent the python code block?

Answer 1

in python you should use double equal signs == to compare two values:

def yieldCalc(value):
    if value == 1:
        return 6.2
    elif value == 2:
        return 7.9
    else:
        return 8.21

Please see the following links from python's documentation for more information on indentation and comparisons:

Style Guide - Indentation

Built-in types - Comparison