Reference: Data Structures > More on Lists Caveats follow Note that while this is perhaps the cleanest way to answer the question as asked, index is a rather weak component of the list API, and I can’t remember the last time I used it in anger. It’s been pointed out to me in the comments that because this answer is heavily … Read more
Somewhere else in your code you have something that looks like this: Then when you write that is interpreted as meaning a function call on the object bound to round, which is an int. And that fails. The problem is whatever code binds an int to the name round. Find that and remove it.
had the same problem. My solution: For Python 3 For Python 2
This is the problem: You are redefining what str() means. str is the built-in Python name of the string type, and you don’t want to change it. Use a different name for the local variable, and remove the global statement.
The variable mean_data is a nested list, in Python accessing a nested list cannot be done by multi-dimensional slicing, i.e.: mean_data[1,2], instead one would write mean_data[1][2]. This is becausemean_data[2] is a list. Further indexing is done recursively – since mean_data[2] is a list, mean_data[2][0] is the first index of that list. Additionally, mean_data[:][0] does not … Read more
While WHAT is True? I reckon saying ‘while true’ is shorthand, but for what? While the variable ‘hand’ is being assigned a value? And what if the variable ‘hand’ is not being assigned a value?
On Python ≥ 3.5, use pathlib.Path.mkdir: For older versions of Python, I see two answers with good qualities, each with a small flaw, so I will give my take on it: Try os.path.exists, and consider os.makedirs for the creation. As noted in comments and elsewhere, there’s a race condition – if the directory is created … Read more
On groupby object, the agg function can take a list to apply several aggregation methods at once. This should give you the result you need:
Python dictionary is a built-in type that supports key-value pairs. as well as using the dict keyword: or:
It must relate to the renaming and deprecation of cross_validation sub-module to model_selection. Try substituting cross_validation to model_selection