Python: Date comparing works in Spyder but not in Console
The problem was related to having several python installations on my PC. After removing all of it and installing a single instance, it was working well. Thanks for the tipp, Carlos Cordoba!
i have written a little csv parser based on pandas.
It works like a charm in Spyder 3. 
Yesterday i tried to put it into production and run it with a .bat file, like:
python my_parser.py
In the console it doesn't work at all.
Pandas behaves different: The read_csv method lost the "quotechar" keyword argument, for example. 
Especially date comparisons break all the time. 
I read the dates with pandas as per
pd.read_csv(parse_dates=[col3, col5, col8])
Then i try a date calculation by substracting pd.to_datetime('now')
I tested everything, and as said, in Spyder no failure is thrown, it works and produces results as it should be.
As soon as i start it in the console, he throws type errors. 
The most often one of the two dates is a mere string and the other stays a datetime, so the minus operation fails.
I could now rewrite the code and find a procedure that works in both, Spyder and console.
However, i prefer to ask you guys here: 
What could be a possible reason that spyder and the console python behave completely different from each other? 
It's really annoying to debug code that does not throw any failures, so i really would like to understand the cause.