I would like to handle the following Exception from py_vollib/py_lets_be_rational in specific way. Tried this without success: what am I doing wrong? any help would be appreciated. Answer Looking at the implementation, you’re missing the period at the end of the sentence: I don’t see the point in this check because that will always be the message the exception is
Tag: exception-handling
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
Multiple try codes in one block
I have a problem with my code in the try block. To make it easy this is my code: try: code a code b #if b fails, it should ignore, and go to c. code c #if c fails, go to d code d …
Why do we need the “finally” clause in Python?
I am not sure why we need finally in try…except…finally statements. In my opinion, this code block try: run_code1() except TypeError: run_code2() other_code() is the same with this one …
How to check that a regular expression has matched a string completely, i.e. – the string did not contain any extra character?
I have two questions: 1) I have a regular expression ([A-Z][a-z]{0,2})(d*) and I am using Python’s re.finditer() to match appropriate strings. My problem is, that I want to match only strings that …