Put very simply, a descriptor is a class that can be used to call a method with simple dot notation, also referred to as attribute access, but there’s obviously more to it than that. It’s difficult to really explain beyond that without digging a little into how they’re implemented. ...
In this case, it opens a text file. It also has to return the descriptor of the resource, so it returns the opened file. The as file assigns the file to a variable file. Finally, the code you want to run with the acquired resource is placed in the with block after the colon. As...
Here's a fun project attempting to explain what exactly is happening under the hood for some counter-intuitive snippets and lesser-known features in Python.While some of the examples you see below may not be WTFs in the truest sense, but they'll reveal some of the interesting parts of ...
In this example, we create a bytestring with the contents "This is a bytestring." and assign it to the variable "bytestring". We then print the bytestring to the console. The "b" prefix before the string literal tells Python to interpret the string as a bytestring. Open Compiler byte...
A new way to edit your Python formulas Today we are excited to announce that the Python Editor is rolling out and will be generally available for Current Channel Windows users starting with 16.0.18... By the way, are there any plans to add AFE in more native way?
Hi is there a way to provide multiple categories for the indexing in groupby? The formula says row_fields, so assuming it was built to allow access to more than one category. In Python you would just do something like this df.groupbu(['Category','Year])[['Sales']].sum(...
The shell code now uses the dup2 command of the Python os module, which interacts with the operating system. The following command takes the file descriptor generated by the previous socket command, and duplicates it three times, overwriting the data streams stdin, stdout, and stderr with the...
In the other cases, we’ll have errors.A general rule of thumb is to always define functions, variables, objects and classes before using them, to avoid surprises.Suppose we have a function:function bark() { alert('wof!') }Due to hoisting, we can technically invoke bark() before it ...
Re: What is not objects in Python? process wrote: I have heard some criticism about Python, that it is not fully object- oriented. Feel free to ignore it if you wish. What is not an object in Python? Depends on what you mean by 'in'. Python is a language for defining and mani...
While Python provides a C API for thread-local storage support; the existing Thread Local Storage (TLS) API has used int to represent TLS keys across all platforms. This has not generally been a problem for officially-support platforms, but that is neither POSIX-compliant, nor portable in any...