TL;DL
To fix the “zipimport.zipimporterror: can’t decompress data; zlib not available” error on Linux, try these 6 quick fixes:
- Run
$ python3 --version
to check the Python version, and if it’s not installed, run$ sudo apt install build-essential
to install it. - Repair Python packages by running
$ sudo apt install python3-pip
, then restart your system using$ sudo reboot
. - Verify zlib installation with
$ dpkg -s zlib1g-dev
, and if it’s not installed, use$ sudo apt-get install zlib1g-dev
. - Install the zlib library by running
$ sudo apt update && sudo apt install zlib1g-dev
, and restart your system. - Configure zlib dependencies by executing
$ sudo apt install libssl-dev
and then test the file for compression or decompression with Python. - Update the zlib library with the
$ sudo apt-get update && sudo apt-get upgrade
command, and restart your system to see if the problem is resolved.
To avoid this error from reoccurring, keep your system and Python packages up-to-date, regularly check the configuration of your system and Python packages, and use a virtual environment for Python development. Additionally, it is highly recommended to back up your Python projects regularly to prevent data or code loss in case of errors or other problems.
To find out more about the “zipimport.zipimporterror: can’t decompress data; zlib not available” error and how to fix it, read the article below now.
The zlib library lets Python compress and decompress files. If it’s missing, not configured properly, or has missing files, it triggers the “zipimport.zipimporterror: can’t decompress data; zlib not available” error and stops Python’s compilation function. To fix this error, I’ll provide a comprehensive guide to install and configure the zlib library for fixing this error.
How to Fix zipimport.zipimporterror Issue [6 Easy Ways]
To fix the zipimport.zipimporterror: can’t decompress data; zlib not available error, try checking the Python version, repairing damaged packages, verifying/installing the zlib library, configuring zlib dependencies, and updating the zlib library. Here’s the step-by-step guide to resolve this error on your Linux system:
1. Check Python Packages
The first thing you should do is check whether Python is installed on your system or not. To do so, here are steps to follow:
- Run the following command in the Terminal window to get the current version of Python:
$ python3 --version
- Once the command is executed, you’ll see the Python version installed on your system.

- However, if Python is not installed on your Linux machine, run the following command to install it.
$ sudo apt install build-essential
2. Repaire the Python Package
The damaged Python package can also cause the “zipimport.zipimporterror: can’t decompress data; zlib not available” error. To repair it, follow the steps below:
- Launch the Terminal and enter the following command:
sudo apt install python3-pip
- Wait for the repair to complete.

- Restart your system using the sudo reboot command.

3. Verify the zlib Library
To check whether the zlib library is installed on your Linux system or not, follow these steps to verify:
- Head to the Terminal window and run the following command:
dpkg -s zlib1g-dev
- If the zlib library is installed, you will see the version number and other details.

- However, if you see an error message as the result of this command, this means that you need to install the zlib library package. To do so, run the following command.
sudo apt-get install zlib1g-dev
- Once it completes the installation process, try checking the zlib library again on your system with the following command. If it’s installed successfully, you’ll see the details of the dpkg zlib library.
dpkg -s zlib1g-dev
4. Install the zlib Library
To install the zlib library and update associated packages on your Linux system, especially if the library is absent or certain packages are outdated, follow these steps:
- Launch the Terminal on your Linux system, and enter the following command:
sudo apt update && sudo apt install zlib1g-dev
- Wait for the update and installation process to complete.

- Restart your system and see if the error is resolved.

5. Configure zlib Dependencies
Sometimes, the missing OpenSSL lib can also cause the zipimport.zipimporterror: can’t decompress data; zlib not available error. To resolve this issue, you need to:
- In the Terminal app, execute the following command:
sudo apt install libssl-dev
- Once it completes the installation, check any file compression or decompression with Python to see if the error is fixed.

6. Update the zlib Library
An incompatible version of the zlib library installed on your system can also cause the zipimport.zipimporterror: can’t decompress data; zlib not available error. To update the zlib library, here’s what you need to do:
- In the Terminal app, run the following command:
sudo apt-get update && sudo apt-get upgrade
- Wait for the update to complete. Type y if the Terminal prompt asks.

- Restart your system and see if the problem is fixed.

4 Quick Tips for Preventing the zipimport.zipimporterror Error
The “zipimport.zipimporterror: can’t decompress data; zlib not available” error can cause significant inconvenience, preventing you from running your Python scripts or using certain features. To prevent this error from occurring, follow the tips outlined below:
- 🔄 Keep Your System and Python Packages Up-to-Date: Regularly update your operating system by running the appropriate package manager command (e.g.,
sudo apt-get update && sudo apt-get upgrade
for Debian-based systems) to ensure you have the latest security patches and bug fixes. Additionally, usepip
orconda
to update your Python packages by runningpip install --upgrade package_name
orconda update package_name
. - 🔍 Regularly Check the Configuration of Your System and Python Packages: Use commands like
ls
,pwd
, andcat
to inspect directories, file paths, and file contents. Verify the configurations of your system and Python packages to ensure they are properly set up. This can help identify and resolve any misconfigurations or installation issues. - 🌐 Use a Virtual Environment for Python Development: Create a virtual environment using the
python3 -m venv env_name
command. Activate the virtual environment withsource env_name/bin/activate
and deactivate it withdeactivate
. This isolates your Python projects and packages, preventing conflicts and allowing for clean installations and dependencies management. - 💾 Back-Up Your Python Projects Regularly: Regularly back up your Python projects to avoid data or code loss. Use the
cp -r project_dir backup_dir
command to create a copy of your project directory. This ensures that you have a duplicate of your project in a separate location, safeguarding against unexpected errors or issues.
Key Takeaways
In conclusion, the “zipimport.zipimporterror: can’t decompress data; zlib not available” error prevents you from running the Python scripts or using certain features on your Linux machine. To fix this error in Python, try solutions such as checking and repairing the Python package, installing and configuring the zlib library, and updating the zlib library. You can avoid this error by keeping packages up-to-date, checking configurations, using virtual environments, and backing up projects.
To become more proficient as a Python developer, you should learn about string-to-float conversion and the None value in Python coding. Understanding how to convert strings to floats allows you to work with numerical data efficiently. Additionally, properly handling None values helps prevent unexpected errors and ensures robustness in your code. However, make sure to check the Python version on your Linux system and update it regularly to access new features, bug fixes, and security patches.
Frequently Asked Questions
What is the zlib library and why is it important for Python?
The zlib library is a data compression library widely used in various applications, including Python. It is important for Python because many Python packages use it. Without the zlib library, these packages cannot perform their intended functions, resulting in errors like the “zipimport.zipimporterror: can’t decompress data; zlib not available” error.
Can I resolve the error without restarting my system?
Yes, it is possible to resolve the zipimport.zipimporterror: can’t decompress data; zlib not available error without restarting your system. This can be done by installing the zlib library and upgrading any damaged Python packages. After that, you may need to close and reopen any terminals or command prompts only. Then, try running your Python project again to see if the error has been resolved.
What’s the impact on other apps when the zipimport.zipimporterror occurs?
The impact of the “zipimport.zipimporterror: can’t decompress data; zlib not available” error on other apps or systems running on the same machine as your Python project can vary depending on the specifics of each situation. In general, the error may have limited or no impact on other applications or systems, as it specifically relates to the functionality of the Python project encountering the error.
Can I resolve the error by installing a different version of Python?
Installing a different version of Python may not always be the solution to resolving the “zipimport.zipimporterror: can’t decompress data; zlib not available” error. While upgrading to a newer version or downgrading to an older version of Python may fix the issue in some cases, it ultimately depends on the specific cause of the error.