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Tag: syntax

Dataframe conditions syntax

I have a mystery error on line 13 of this program. I’m trying to select all the times between 22.00 and 23.00. I’ve tried with and without datetime, with and without apostrophes, but I get the same error every time: “SyntaxError: invalid syntax” The csv file is 8 columns and ‘complaint_time’ is in the format 12:22:01 AM. What am I

Run Loop If Value Does Not Exist in Database

#update – I fixed the syntax error moving a ), but it still doesn’t work as intended. Now it runs the loop even with a duplicate, which is not the intent. I’m trying to add a list of quotes to a database, but only if the author doesn’t already exist. I’m getting a syntax error here, and no existing posts

Comma Syntax: rationale behind a hanging comma in a statement being a SyntaxError

In Python, a variable or literal followed by a hanging comma is a one-tuple: …and a series of comma-separated variables/literals (whether or not they are followed by a hanging comma) is also a tuple: However, inside a callable/function, this syntax is treated differently, because the comma is used for separation of arguments: The first line seems to simply ignore the

Python “raise from” usage

What’s the difference between raise and raise from in Python? which yields and which yields Answer The difference is that when you use from, the __cause__ attribute is set and the message states that the exception was directly caused by. If you omit the from then no __cause__ is set, but the __context__ attribute may be set as well, and