Author: John Au-Yeung

Sometimes, we want to compare a string to multiple items in Python.

In this article, we’ll look at how to compare a string to multiple items in Python.

How to compare a string to multiple items in Python?

To compare a string to multiple items in Python, we can use the in operator.

For instance, we write:

accepted_strings = ['auth', 'authpriv', 'daemon']
facility = 'auth'

if facility in accepted_strings:
    print('accepted')

We have the accepted_strings list.

Then we can use the in operator to check if facility included in the accepted_strings list.

Since this is True, 'accepted' is printed.

Conclusion

To compare a string to multiple items in Python, we can use the in operator.

Sometimes, we want to upload a file with the Python requests module.

In this article, we’ll look at how to upload a file with the Python requests module.

How to upload a file with the Python requests module?

To upload a file with the Python requests module, we can call requests.post with the URL of the endpoint to upload the file to and set the files parameter to a dictionary with the form data payload.

For instance, we write:

import requests

url = 'http://httpbin.org/post'
files = {'file': open('file.csv', 'rb')}

r = requests.post(url, files=files)
print(r.text)

We call requests.post with the url and files set to the files dictionary.

We set the file form data entry to the file handle of the file.csv file.

Then we get the response text with r.text.

Conclusion

To upload a file with the Python requests module, we can call requests.post with the URL of the endpoint to upload the file to and set the files parameter to a dictionary with the form data payload.

Sometimes, we want to import a CSV to list with Python.

In this article, we’ll look at how to import a CSV to list with Python.

How to import a CSV to list with Python?

To import a CSV to list with Python, we can call open to open the CSV and then call csv.reader to read it.

For instance, we write:

import csv

with open('file.csv', newline='') as f:
    reader = csv.reader(f)
    data = list(reader)

print(data)

We call open with the path string to the file.

Then we call csv.reader with the file handle f to read the file and return a iterator.

Then we assign the iterator to reader.

Finally, we convert the reader iterator to a list with list and assign it to data.

Therefore, data is [['This is the first line', 'Line1'], ['This is the second line', 'Line2'], ['This is the third line', 'Line3']] if file.csv has:

This is the first line,Line1
This is the second line,Line2
This is the third line,Line3

Conclusion

To import a CSV to list with Python, we can call open to open the CSV and then call csv.reader to read it.

Sometimes, we want to check which OS a script is running on with Python.

In this article, we’ll look at how to check which OS a script is running on with Python.

How to check which OS a script is running on with Python?

To check which OS a script is running on with Python, we can use the os.name property or platform.system method.

For instance, we write:

import os

print(os.name)

And we see 'posix' printed when we run the script in a Unix like OS.

We can get more specific OS info with platform.system and platform.release.

For instance, we write:

import platform

print(platform.system())
print(platform.release())

We call platform.system to get the name of the OS the script is currently running on.

And we call platform.release to get the release info of the OS the script is currently running on.

Therefore, we get something like:

Linux
5.11.0-1021-gcp

printed.

Conclusion

To check which OS a script is running on with Python, we can use the os.name property or platform.system method.

We call platform.system to get the name of the OS the script is currently running on.

And we call platform.release to get the release info of the OS the script is currently running on.

Sometimes, we want to get the current time in Python.

In this article, we’ll look at how to get the current time in Python.

How to get the current time in Python?

To get the current time in Python, we can use the datetime.datetime.now method.

For instance, we write:

import datetime

t = datetime.datetime.now().time()
print(t)

We call datetime.datetime.now to get the current date and time.

And then we call time to return the current time.

Conclusion

To get the current time in Python, we can use the datetime.datetime.now method.