I wrote the following simple code in IDE
def initialize(context):
print("The backtester initialized at : "+str(get_datetime()))
And the result is the following:
1970-01-01 02:00 PRINT The backtester initialized at : 2010-01-04 00:00:00+00:00
2010 is a reasonable date which I set as starting time. But what is the deal with 1970?