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Showing posts with the label Types

Why Numpy.asarray Return An Array Full Of Boolean

If I want to have an array filled whith 0 or 1 depending of the pixels value in a image, I write th… Read more Why Numpy.asarray Return An Array Full Of Boolean

Do Python Parameter Type Hints Support Nested Type Information?

I have a function that is logically as follows: def computeProbability( x_i: np.array(np.int3… Read more Do Python Parameter Type Hints Support Nested Type Information?

How Do I Translate Postgresql Oid Using Python

I am having bit of trouble with the psycopg2 Python module. I wrote a small code to extract some in… Read more How Do I Translate Postgresql Oid Using Python

Why Return Type Is Not Checked In Python3?

Example from PEP 484 -- Type Hints def greeting(name: str) -> str: return 'Hello ' +… Read more Why Return Type Is Not Checked In Python3?

Can't Dynamically Bind __repr__/__str__ To A Class Created With Type

I'm rolling my own Enum class for python and I'm having trouble getting __str__ and __repr_… Read more Can't Dynamically Bind __repr__/__str__ To A Class Created With Type

Pandas Gives Incorrect Result When Asking If Timestamp Column Values Have Attr Astype

With a column containing Timestamp values, I am getting inconsistent results about whether the elem… Read more Pandas Gives Incorrect Result When Asking If Timestamp Column Values Have Attr Astype

Pandas Fails With Correct Data Type While Reading A Sas File

I have a SAS dataset and when I run it I get the following output on SAS: I also have the followin… Read more Pandas Fails With Correct Data Type While Reading A Sas File

Typeerror: 'str' Object Cannot Be Interpreted As An Integer

I don't understand what the problem is with the code, it is very simple so this is an easy one.… Read more Typeerror: 'str' Object Cannot Be Interpreted As An Integer

Numba: Calling Jit With Explicit Signature Using Arguments With Default Values

I'm using numba to make some functions containing cycles on numpy arrays. Everything is fine an… Read more Numba: Calling Jit With Explicit Signature Using Arguments With Default Values

Is There Anything In Python That Is A `nonetype` Besides `none`?

I was just wondering if in Python there's any other object/instance whose type is NoneType type… Read more Is There Anything In Python That Is A `nonetype` Besides `none`?

Converting Astropy.table.columns To A Numpy Array

I'd like to plot points: points = np.random.multivariate_normal(mean=(0,0), cov=[[0.4,9],[9,10]… Read more Converting Astropy.table.columns To A Numpy Array

Identifying The Data Type Of An Input

Hi I am trying to print the data type of a user input and produce a table like following: ABCDEFGH… Read more Identifying The Data Type Of An Input

How To Get The Types Of Numpy Function Arguments (from Docstrings) Using Jedi In Python

Ideally I would like a function which works as follows (for all kinds of numpy functions): paramete… Read more How To Get The Types Of Numpy Function Arguments (from Docstrings) Using Jedi In Python

Smart Type Casting In Python

I am making api calls and receive a response back in json like so result = {'foo': '123… Read more Smart Type Casting In Python

The Built-in Keyword Type Means A Function Or A Class In Python?

In most posts, people often say type is a built-in function if it is provided with one argument, an… Read more The Built-in Keyword Type Means A Function Or A Class In Python?

Pandas Dataframe, Getting Average Value For Each Monday 1 Am

my DataFrame looks like this: index value 2016-03-21 00:00:00 0.613014 2016-0… Read more Pandas Dataframe, Getting Average Value For Each Monday 1 Am

Why Does Mypy Infer The Common Base Type Instead Of The Union Of All Contained Types?

When iterating over a heterogeneous sequence (containing elements of type T1 and T2, say), mypy inf… Read more Why Does Mypy Infer The Common Base Type Instead Of The Union Of All Contained Types?

Determining A Variable's Type Is NoneType In Python

I would like to check if a variable is of the NoneType type. For other types we can do stuff like: … Read more Determining A Variable's Type Is NoneType In Python

Do Python Parameter Type Hints Support Nested Type Information?

I have a function that is logically as follows: def computeProbability( x_i: np.array(np.int3… Read more Do Python Parameter Type Hints Support Nested Type Information?

Why Is A NumPy Int Not An Instance Of A Python Int, But A NumPy Float Is An Instance Of A Python Float?

Consider the following: >>> import numbers >>> import numpy >>> a = nump… Read more Why Is A NumPy Int Not An Instance Of A Python Int, But A NumPy Float Is An Instance Of A Python Float?