Module datetime has no attribute strftime как исправить

working with datetime gets very confusing once you consider that datetime is both the package name and a module name inside datetime.

the datetime package has a lot of different modules, namely:

datetime module handles datetime objects.

date module handles date objects.

time module handles time objects.

timedelta module handles timedelta objects.

In your case, when you said import datetime, what you’re really referring to is the datetime package NOT the datetime module.

strftime is a method of datetime objects (i.e. under the datetime module)

therefore, you have 2 ways to go about this.

If you went with import datetime, then you have to specify the package, the module THEN the method, like so:

import datetime

today = datetime.datetime.now()
today.strftime('%Y-%m-%d')

or the better, more human readable way is to just import the datetime module under the datetime package by doing a from *package* import *module*. Applied to the datetime package, that means: from datetime import datetime like so:

from datetime import datetime

today = datetime.now()
today.strftime('%Y-%m-%d')

OR, my preferred method, is to give the module an alias (or basically a «nickname»), so it doesn’t get confusing (LOL):

from datetime import datetime as dt
from datetime import timedelta as td

today = dt.now() # get date and time today
delta = td(days=3) #initialize delta
date_you_actually_want = today + delta # add the delta days
date_you_actually_want.strftime('%Y-%m-%d') # format it

hope that clears it up for you.

This error occurs when you import the datetime module and try to call the strftime() method on the imported module. You can solve this error by importing the datetime class using:

from datetime import datetime

or accessing the class method using

datetime.datetime.strftime()

This tutorial will go through the error and how to solve it with code examples.

AttributeError: module ‘datetime’ has no attribute ‘strftime’

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('strftime' 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 strftime() 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 using the from keyword and call dir(), we will see strftime as an attribute of the class. We can check for strftime in the list of attributes as follows:

from datetime import datetime

attributes = dir(datetime)

print('strftime' in attributes)

True

Example

Consider the following example, where we want to get create a string representation of a date and time using the strftime() method.

import datetime

now = datetime.datetime.now()

date_string = datetime.strftime(now, "%m/%d/%Y, %H:%M:%S")

print(date_string)

In the above code, we get the current local date and time using the now() method and then pass the datetime object to strftime() with the format. Let’s run the code to see what happens:

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Input In [1], in <cell line: 5>()
      1 import datetime
      3 now = datetime.datetime.now()
----> 5 date_string = datetime.strftime(now, "%m/%d/%Y, %H:%M:%S")
      7 print(date_string)

AttributeError: module 'datetime' has no attribute 'strftime'

The error occurs because we imported the datetime module and tried to call the strftime() method on the module, but strftime() 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

now = datetime.now()

date_string = datetime.strftime(now, "%m/%d/%Y, %H:%M:%S")

print(date_string)

Note that we had to change the now() method call from datetime.datetime.now() to datetime.now() as we have imported the datetime class. Let’s run the code to see the result:

05/19/2022, 17:49:40

We successfully created a formatted string representing a 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 strftime() method. Let’s look at the revised code:

import datetime

now = datetime.datetime.now()

date_string = datetime.datetime.strftime(now, "%m/%d/%Y, %H:%M:%S")

print(date_string)

Let’s run the code to get the result:

05/19/2022, 17:49:40

We successfully created a formatted string representing a 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 ‘now’
• How to Solve Python AttributeError: module ‘datetime’ has no attribute ‘strptime’
• How to Solve Python AttributeError: module ‘datetime’ has no attribute ‘today’

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!

What causes and solutions to solve the error AttributeError module ‘datetime’ has no attribute ‘strftime’? If you are looking for a solution to this problem, this article is for you. Let’s read it now.

In Python, a datetime module is responsible for working and dealing with issues related to date and time. In the datetime module, there are the following classes: datetime.date, datetime.time, datetime.datetime and datetime.delta. 

The strftime() function returns a string representing the date, time, and time values ​​using the time, date, and datetime classes and they use the format parameters %Y, %m, %d, %H…. in the strftime() function.

The error happens because you call the strftime() function on the datetime module without importing the classes from that module. 

Example: 

import datetime

datetimeStr = datetime.strftime('%m/%d/%Y')
print(datetimeStr)

Output:

Traceback (most recent call last):
 File "./prog.py", line 3, in <module>
AttributeError: module 'datetime' has no attribute 'strftime'

How to solve the AttributeError module ‘datetime’ has no attribute ‘strftime’?

Import datetime class from datetime module

As I mentioned, this error happens when you don’t import datetime class, so just importing datetime class and then using the ‘from’ keyword.

Example:

• Import datetime class from datetime module.
• Use datetime.now() to get the current date and time.
• Then, the strftime() function converts the time format to a string according to the format parameter. The format parameter I leave is month/day/year.

from datetime import datetime

# Use the datetime.now() function to get the current date and time
currentTime = datetime.now()

# Use the strftime() function to convert the time format to a string
datetimeStr = currentTime.strftime('%m/%d/%Y')
print('The datetime object is converted to a string:', datetimeStr)

Output:

The datetime object is converted to a string: 12/10/2022

Or you can use the following shorthand to create a datetime object and call strftime() on that object.

Example:

import datetime

# Use the datetime.now() function to get the current date and time
currentTime = datetime.datetime.now()

# Use the strftime() function to convert the time format to a string
datetimeStr = currentTime.strftime('%m/%d/%Y')
print('The datetime object is converted to a string:', datetimeStr)

Output:

The datetime object is converted to a string: 12/10/2022

Use the assigned name

To avoid overlapping the class name with the module name, you can handle it by assigning it a different name.

Example:

• Import datetime class from datetime module.
• Assign a different name than the module name and class name. In this example, I named it ‘lsi’.
• The now() function is called on the assignment name and returns the current date and time.
• Call the strftime() function on that datetime object and convert it to a string according to the format parameter.

from datetime import datetime as lsi

# The now() function is called on the assignment name and returns the current date and time
currentTime = lsi.now()

# Use the strftime() function to convert the time format to a string
datetimeStr = currentTime.strftime('%m/%d/%Y')
print('The datetime object is converted to a string:', datetimeStr)

Output:

The datetime object is converted to a string: 12/10/2022

Summary

That is the cause and handling of the AttributeError module ‘datetime’ has no attribute ‘strftime’ I want to convey to you. The key point to solve this error is importing the datetime class from the datetime module. Hope you get it fixed soon.

Maybe you are interested:

• AttributeError: ‘str’ object has no attribute ‘keys’
• AttributeError: ‘float’ object has no attribute ‘#’ in Python
• AttributeError: ‘list’ object has no attribute ‘encode’

2 ответа

Лучший ответ

import datetime

today = datetime.datetime.now()
today.strftime('%Y-%m-%d')

from datetime import datetime

today = datetime.now()
today.strftime('%Y-%m-%d')

from datetime import datetime as dt
from datetime import timedelta

today = dt.now() # get date and time today
delta = td(days=3) #initialize delta
date_you_actually_want = today + delta # add the delta days
date_you_actually_want.strftime('%Y-%m-%d') # format it

# import datetime class from the datetime module:
from datetime import datetime

# instantiate a new datetime object:
a = datetime(12, 10, 30, 11, 23, 45)

# call the strftime() method on the object:
print(a.strftime("%H:%M:%S %Z"))
# 11:23:45