Easiest way would be as the warnings module suggests here:
with warnings.catch_warnings():
warnings.simplefilter("ignore")
import paramiko
Python
docs.python.org › 3 › library › warnings.html
Warning control — Python 3.14.3 documentation
January 29, 2026 - The determination whether to issue a warning message is controlled by the warning filter, which is a sequence of matching rules and actions. Rules can be added to the filter by calling filterwarnings() and reset to its default state by calling ...
Top answer 1 of 4
75
Easiest way would be as the warnings module suggests here:
with warnings.catch_warnings():
warnings.simplefilter("ignore")
import paramiko
2 of 4
34
The module argument to warnings.filterwarnings takes a case-sensitive regular expression which should match the fully qualified module name, so
warnings.filterwarnings(
action='ignore',
category=DeprecationWarning,
module=r'.*randpool'
)
or
warnings.filterwarnings(
action='ignore',
category=DeprecationWarning,
module=r'Crypto\.Utils\.randpool'
)
should work. You may need to write RandomPool_DeprecationWarning explicitly instead of DeprecationWarning if for some reason RandomPool_DeprecationWarning is not a subclass of DeprecationWarning.
You can also disable the warning on the command line when you invoke the script by passing the -W option to the interpreter like so:
$ python -W ignore::RandomPool_DeprecationWarning:Crypto.Utils.randpool: my_script.py
The -W takes filters in the format action:message:category:module:lineno, where this time module must exactly match the (fully-qualified) module name where the warning is raised.
See https://docs.python.org/2/library/warnings.html?highlight=warnings#the-warnings-filter and https://docs.python.org/2/using/cmdline.html#cmdoption-w
Python Module of the Week
pymotw.com › 2 › warnings
warnings – Non-fatal alerts - Python Module of the Week
import warnings warnings.filterwarnings('ignore', '.*', UserWarning, 'warnings_filtering', ) import warnings_filtering · Since the filter is in place, no warnings are emitted when warnings_filtering is imported: $ python warnings_filterwarnings_module.py · To suppress only the warning on line 14 of warnings_filtering: import warnings warnings.filterwarnings('ignore', '.*', UserWarning, 'warnings_filtering', 14) import warnings_filtering ·
pytest
docs.pytest.org › en › stable › how-to › capture-warnings.html
How to capture warnings - pytest documentation
For example, the configuration below will ignore all user warnings and specific deprecation warnings matching a regex, but will transform all other warnings into errors. ... [pytest] filterwarnings = [ "error", "ignore::UserWarning", # note the use of single quote below to denote "raw" strings in TOML 'ignore:function ham\(\) is deprecated:DeprecationWarning', ] ini
Top answer 1 of 15
1216
Look at the Temporarily Suppressing Warnings section of the Python docs:
If you are using code that you know will raise a warning, such as a deprecated function, but do not want to see the warning, then it is possible to suppress the warning using the
catch_warningscontext manager:import warnings def fxn(): warnings.warn("deprecated", DeprecationWarning) with warnings.catch_warnings(): warnings.simplefilter("ignore") fxn() # Or if you are using > Python 3.11: with warnings.catch_warnings(action="ignore"): fxn()
I don't condone it, but you could just suppress all warnings with this:
import warnings
warnings.filterwarnings("ignore")
Ex:
>>> import warnings
>>> def f():
... print('before')
... warnings.warn('you are warned!')
... print('after')
...
>>> f()
before
<stdin>:3: UserWarning: you are warned!
after
>>> warnings.filterwarnings("ignore")
>>> f()
before
after
2 of 15
724
There's the -W option.
python -W ignore foo.py
Astropy
docs.astropy.org › en › latest › warnings.html
Python warnings system — Astropy v8.0.0.dev582+gdbe942d45
For instance, the warnings issued from a single call to the astropy.io.fits.writeto function may be suppressed from within a Python script using the warnings.filterwarnings function as follows: >>> import warnings >>> from astropy.io import fits >>> warnings.filterwarnings('ignore', category=UserWarning, append=True) >>> fits.writeto(filename, data, overwrite=True) An equivalent way to insert an entry into the list of warning filter specifications for simple call warnings.simplefilter: >>> warnings.simplefilter('ignore', UserWarning) Astropy includes its own warning classes, AstropyWarning and AstropyUserWarning.
Beautiful Soup
tedboy.github.io › python_stdlib › generated › generated › warnings.filterwarnings.html
warnings.filterwarnings() — Python Standard Library
warnings.filterwarnings() View page source · warnings.filterwarnings(action, message='', category=<type 'exceptions.Warning'>, module='', lineno=0, append=0)[source]¶ · Insert an entry into the list of warnings filters (at the front). ‘action’ – one of “error”, “ignore”, “always”, “default”, “module”, or “once” ·
GeeksforGeeks
geeksforgeeks.org › python › how-to-disable-python-warnings
How to Disable Python Warnings? - GeeksforGeeks
July 23, 2025 - To disable warnings from within the code, we can use Python's built-in warnings module. By setting up warning filters, we can prevent warnings from being displayed during the execution of the program. If you want to hide all warnings throughout your program, you can use warnings.filterwarnings('i...
Plain English
python.plainenglish.io › controlling-warning-messages-in-python-4ca7ed37ca94
Controlling Warning Messages in Python | Python in Plain English
October 27, 2024 - Python’s warnings module allows you to control the display of warnings by suppressing them selectively. You can suppress warnings using the filterwarnings() function, which provides a flexible way to filter which warnings are shown or hidden.
Python Forum
python-forum.io › thread-35299.html
Filtering warnings by message
I'm struggling to understand how to use the message argument in warnings.filterwarnings. I am specifically trying to silent a deprecation warning from matplotlib. Here is what I have: import warnings from matplotlib import pyplot fig, ax = pyplot.su...
Coderz Column
coderzcolumn.com › tutorials › python › warnings-simple-guide-to-handle-warning-messages-in-python
warnings - Simple Guide to Handle Warning Messages in Python by Sunny Solanki
The MAJOR difference between this method and simplefilter() is that this method provides finer control on filtering warning messages that let us filter warning of particular module whereas simplefilter() works on all modules. It even let us match warning message with a regular expression for filtering. Below we have mentioned a list of parameters of filterwarnings().
Readthedocs
scitools-iris.readthedocs.io › en › latest › further_topics › filtering_warnings.html
Filtering Warnings — Iris 3.15.0.dev78 documentation
Within Python: use warnings.filterwarnings() .
Tutorialspoint
tutorialspoint.com › python › python_warnings.htm
Python - Warnings
For example, if you feel that a ... a warning is not important, you can ignore it. The filterwarnings() function from the warnings module can be used to specify warning filters....
Cam
downloads.ccdc.cam.ac.uk › documentation › API › descriptive_docs › warnings.html
Warnings — CSD Python API 3.6.1 documentation
Generates a warning message with explicit details about the warning location, such as the filename and line number. This is useful when you want to generate warnings for external code or for custom warnings. filterwarnings(action, message="", category=Warning, module="", lineno=0, append=False):
Jython
jython.org › jython-old-sites › docs › library › warnings.html
26.4. warnings — Warning control — Jython v2.5.2 documentation
The determination whether to issue a warning message is controlled by the warning filter, which is a sequence of matching rules and actions. Rules can be added to the filter by calling filterwarnings() and reset to its default state by calling resetwarnings().
Astropy
docs.astropy.org › en › stable › warnings.html
Python warnings system — Astropy v7.2.0
For instance, the warnings issued from a single call to the astropy.io.fits.writeto function may be suppressed from within a Python script using the warnings.filterwarnings function as follows: >>> import warnings >>> from astropy.io import fits >>> warnings.filterwarnings('ignore', category=UserWarning, append=True) >>> fits.writeto(filename, data, overwrite=True) An equivalent way to insert an entry into the list of warning filter specifications for simple call warnings.simplefilter: >>> warnings.simplefilter('ignore', UserWarning) Astropy includes its own warning classes, AstropyWarning and AstropyUserWarning.
Readthedocs
scitools-iris.readthedocs.io › en › stable › further_topics › filtering_warnings.html
Filtering Warnings — Iris 3.14.1 documentation
Within Python: use warnings.filterwarnings() .
GeeksforGeeks
geeksforgeeks.org › python › warnings-in-python
Warnings in Python - GeeksforGeeks
January 23, 2020 - filterwarnings(action, message='', category=Warning, module='', lineno=0, append=False): This function adds an entry into the specifications of the warnings filter. Python3 · # program to illustrate filterwarnings() # function in warning module ...
GitHub
github.com › python › cpython › issues › 103577
`filterwarnings` causes `warnings.warn` to raise `TypeError` on non-string messages · Issue #103577 · python/cpython
April 16, 2023 - import warnings # Does not raise a type error warnings.warn(1) # Raises a type error with warnings.catch_warnings(): warnings.filterwarnings("ignore", "test") warnings.warn(1)
Author zanieb
DEV Community
dev.to › hyperkai › warning-filter-in-python-4g0e
Warning Filter in Python - DEV Community
May 14, 2025 - import warnings warnings.resetwarnings() warnings.filterwarnings(action="error") warnings.simplefilter(action="error") print(warnings.filters) # [('error', None, <class 'Warning'>, None, 0)] import file1, file2 # ...\my_project\file1.py", line 3, in <module> # warnings.warn(message="Warning 1", category=UserWarning) # UserWarning: Warning 1