pip install msgpack
The Python msgpack library is among the top 100 Python libraries, with more than 20,018,334 downloads. This article will show you everything you need to get this installed in your Python environment.
How to Install msgpack on Windows?
- Type
"cmd"
in the search bar and hitEnter
to open the command line. - Type “
pip install msgpack
” (without quotes) in the command line and hitEnter
again. This installs msgpack for your default Python installation. - The previous command may not work if you have both Python versions 2 and 3 on your computer. In this case, try
"pip3 install msgpack"
or “python -m pip install msgpack
“. - Wait for the installation to terminate successfully. It is now installed on your Windows machine.
Here’s how to open the command line on a (German) Windows machine:
First, try the following command to install msgpack on your system:
pip install msgpack
Second, if this leads to an error message, try this command to install msgpack on your system:
pip3 install msgpack
Third, if both do not work, use the following long-form command:
python -m pip install msgpack
The difference between pip
and pip3
is that pip3
is an updated version of pip
for Python version 3. Depending on what’s first in the PATH
variable, pip
will refer to your Python 2 or Python 3 installation—and you cannot know which without checking the environment variables. To resolve this uncertainty, you can use pip3
, which will always refer to your default Python 3 installation.
How to Install msgpack on Linux?
You can install msgpack on Linux in four steps:
- Open your Linux terminal or shell
- Type “
pip install msgpack
” (without quotes), hit Enter. - If it doesn’t work, try
"pip3 install msgpack"
or “python -m pip install msgpack
“. - Wait for the installation to terminate successfully.
The package is now installed on your Linux operating system.
How to Install msgpack on macOS?
Similarly, you can install msgpack on macOS in four steps:
- Open your macOS terminal.
- Type “
pip install msgpack
” without quotes and hitEnter
. - If it doesn’t work, try
"pip3 install msgpack"
or “python -m pip install msgpack
“. - Wait for the installation to terminate successfully.
The package is now installed on your macOS.
How to Install msgpack in PyCharm?
Given a PyCharm project. How to install the msgpack library in your project within a virtual environment or globally? Hereβs a solution that always works:
- Open
File > Settings > Project
from the PyCharm menu. - Select your current project.
- Click the
Python Interpreter
tab within your project tab. - Click the small
+
symbol to add a new library to the project. - Now type in the library to be installed, in your example
"msgpack"
without quotes, and clickInstall Package
. - Wait for the installation to terminate and close all pop-ups.
Hereβs the general package installation process as a short animated videoβit works analogously for msgpack if you type in “msgpack” in the search field instead:
Make sure to select only “msgpack” because there may be other packages that are not required but also contain the same term (false positives):
How to Install msgpack in a Jupyter Notebook?
To install any package in a Jupyter notebook, you can prefix the !pip install my_package
statement with the exclamation mark "!"
. This works for the msgpack library too:
!pip install my_package
This automatically installs the msgpack library when the cell is first executed.
How to Resolve ModuleNotFoundError: No module named ‘msgpack’?
Say you try to import the msgpack package into your Python script without installing it first:
import msgpack # ... ModuleNotFoundError: No module named 'msgpack'
Because you haven’t installed the package, Python raises a ModuleNotFoundError: No module named 'msgpack'
.
To fix the error, install the msgpack library using “pip install msgpack
” or “pip3 install msgpack
” in your operating system’s shell or terminal first.
See above for the different ways to install msgpack in your environment.
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