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Tag: python-3.x

Return only the property of enum, not Class.Property [closed]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 2 years ago. Improve this question

TypeError: Cannot instantiate typing.Optional [closed]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 2 years ago. Improve this question

How do I iterate through an entire directory and select only one class from a multi-class file in Python?

I could use some help iterating through a directory with multi-class files. Each sample contains two classes (for example, the first sample in my database is 1001, and this file includes 1001.dat and 1001.hea), and I want to iterate through my directory and access all .dat files separately from .hea files. Right now, simply iterating through the directory produces a

Python: Write list of lists to CSV

In my python script I’m having a list that has the following structure: and so on. I want to write this list to csv file in a way that every element is in separate row and every string in one element is in separate column. So I want to end up with the following result in csv file: Currently I

How to type hint a generic numeric type in Python?

Forgive me if this question has been asked before but I could not find any related answer. Consider a function that takes a numerical type as input parameter: This works with integers, floats and complex numbers. Is there a basic type so that I can do a type hinting (of a real existing type/base class), such as: Furthermore I need

Abstract dataclass without abstract methods in Python: prohibit instantiation

Even if a class is inherited from ABC, it can still be instantiated unless it contains abstract methods. Having the code below, what is the best way to prevent an Identifier object from being created: Identifier([‘get’, ‘Name’])? Answer You can create a AbstractDataclass class which guarantees this behaviour, and you can use this every time you have a situation like

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