Run python script inside powershell script

Question

I want to run a python script from inside a powershell script. All of my searches lead me to questions like THIS. I tried using Invoke-Expression, but a command window briefly opens and closes, without the expected output from the python script.

I also tried using the '&' operator, based on THIS question. This time, the script starts, but throws a SyntaxError. There is no such error when I run the python script separately.

EDIT: This is the command I run:

& $python $MyPythonScript

and the variables are set like this:

python="C:\Python33\python.exe"
MyPythonScript="D:\MyPythonScript.py"

This is the output:

File "D:\MyPythonScript.py", line 140
print "type=%s; mean = %s; finalVariance = %s; stdDev = %s; max(x) = %s; min(x) = %s; max(y) = %s; min(y) = %s; timeDiff = %s;" %(type, mean(distance), finalVariance, stdDev,    max(x), min(x), max(y), min(y), timeDiff)
                                                                                                                              ^
SyntaxError: invalid syntax

The & operator should do what you want. Please show the exact command line you're trying to run as well as the error it throws. — Ansgar Wiechers
– Ansgar Wiechers, Commented Oct 21, 2013 at 21:48
I have edited my question to show the script I run and the output. — Sarvavyapi
– Sarvavyapi, Commented Oct 21, 2013 at 21:54

Ansgar Wiechers · Accepted Answer · 2013-10-21 22:09:36Z

4

That's a Python syntax error, not a PowerShell syntax error. Put the string interpolation in parentheses:

print ("type=%s; ... = %s;" % (type, ..., timeDiff))

answered Oct 21, 2013 at 22:09

Ansgar Wiechers

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