This error occurs when you import the datetime module and try to call the now() method on the imported module. You can solve this error by importing the datetime class using from datetime import datetime
or access the class method using
datetime.datetime.now()
This tutorial will go through the error and how to solve it with code examples.
Table of contents
AttributeError: module ‘datetime’ has no attribute ‘now’
AttributeError occurs in a Python program when we try to access an attribute (method or property) that does not exist for a particular object. datetime is a built-in Python module that supplies classes for manipulating dates and times. One of the classes in datetime is called datetime. It can be unclear when both the module and one of the classes share the same name. If you use the import syntax:
import datetime
You are importing the datetime
module, not the datetime
class. We can verify that we are importing the module using the type() function:
import datetime print(type(datetime))
<class 'module'>
We can check what names are under datetime using dir() as follows:
import datetime attributes = dir(datetime) print('now' in attributes)
In the above code, we assign the list of attributes returned by dir() to the variable name attributes. We then check for the now()
attribute in the list using the in operator. When we run this code, we see it returns False.
False
However, if we import the datetime class and call dir()
, we will see now
as an attribute of the class. We can check for now in the list of attributes as follows:
from datetime import datetime attributes = dir(datetime) print('now' in attributes)
True
Example
Consider the following example, where we want to get the current local date and time.
import datetime date = datetime.now()
Let’s run the code to see the result:
--------------------------------------------------------------------------- AttributeError Traceback (most recent call last) Input In [2], in <cell line: 1>() ----> 1 date = datetime.now() AttributeError: module 'datetime' has no attribute 'now'
The error occurs because we imported the module datetime and tried to call the now()
method, but now()
is an attribute of the datetime class, not the module.
Solution #1: Use the from keyword
We can solve this error by importing the datetime class using the from
keyword. Let’s look at the revised code:
from datetime import datetime date = datetime.now() print(date)
Let’s run the code to see the result:
2022-05-18 22:59:50.053400
We successfully retrieved the current date and time.
Solution #2: Use datetime.datetime
We can also solve this error by importing the module and then accessing the class attribute using datetime.datetime
, then we can call the now()
method. Let’s look at the revised code:
import datetime date = datetime.datetime.now() print(date)
Let’s run the code to see the result:
2022-05-18 23:43:37.372667
We successfully retrieved the current date and time.
Summary
Congratulations on reading to the end of this tutorial! Remember that from datetime import datetime
imports the datetime class and import datetime
imports the datetime module.
For further reading on AttributeErrors involving datetime, go to the articles:
- How to Solve Python AttributeError: ‘datetime.datetime’ has no attribute ‘datetime’
- How to Solve Python AttributeError: module ‘datetime’ has no attribute ‘strptime’
To learn more about Python for data science and machine learning, go to the online courses page on Python for the most comprehensive courses available.
Have fun and happy researching!
Suf is a senior advisor in data science with deep expertise in Natural Language Processing, Complex Networks, and Anomaly Detection. Formerly a postdoctoral research fellow, he applied advanced physics techniques to tackle real-world, data-heavy industry challenges. Before that, he was a particle physicist at the ATLAS Experiment of the Large Hadron Collider. Now, he’s focused on bringing more fun and curiosity to the world of science and research online.