- The conda configuration file (.condarc)
- General configuration
- Advanced configuration
- Conda build configuration
The conda configuration file (.condarc) is an OPTIONAL runtime configuration file which allows advanced users to configure various aspects of conda, such as which channels it searches for packages, proxy settings, environment directories, etc.
A .condarc file is not included by default, but it is automatically created in
the user’s home directory when you use the
conda config command.
A .condarc file may also be located in the root environment, in which case it overrides any in the home directory.
Note: A .condarc file can also be used in an administrator-controlled installation to override the users’ configuration. Please see Centralized installation.
The conda configuration file can be used to change:
- Where conda looks for packages
- If and how conda uses a proxy server
- Where conda lists known environments
- Whether to update the bash prompt with the current activated environment name
- Whether user-built packages should be uploaded to Anaconda.org
- Default packages or features to include in new environments
- And more.
To create or modify a .condarc configuration file, from the command line, use
conda config command, or use a text editor to create a new file named
.condarc and save to your user home directory or root directory.
The .condarc configuration file follows simple YAML syntax.
Conda supports tab completion with external packages instead of internal configuration.
For more configuration information see: http://continuum.io/blog/advanced-conda-part-1#configuration
Listing channel locations in the .condarc file will override conda defaults, causing conda to search only the channels listed here, in the order given.
defaults to automatically include all default channels. Non-url channels
will be interpreted as Anaconda.org usernames, and this can be changed by modifying
channel_alias key as explained below. The default is just
channels: - <anaconda_dot_org_username> - http://some.custom/channel - file:///some/local/directory - defaults
Choose the yes option whenever asked to proceed, such as when installing. Same
as using the
--yes flag at the command line. The default is
Show channel URLs when displaying what is going to be downloaded and
conda list. The default is
activate, change the command prompt (
$PS1) to include the activated
environment. The default is
Add pip and setuptools as dependencies of python. This ensures pip and setuptools
will always be installed any time python is installed. The default is
Use pip when listing packages with
conda list. Note that this does not affect
any conda command or functionality other than the output of the
conda list. The default is
By default, proxy settings are pulled from the
environment variables or the system. Setting them here overrides that default.
proxy_servers: http: http://user:firstname.lastname@example.org:8080 https: https://user:email@example.com:8080
Note: If you do not include the username and password, of if authentication fails, conda will prompt for a username and password.
Note: If your password contains special characters they will need to be escaped as follows: https://en.wikipedia.org/wiki/Percent-encoding#Percent-encoding_reserved_characters
Note: Be careful not to use
http when you mean
https when you mean
Note: If you are behind a proxy that does SSL inspection such as a Cisco IronPort Web Security Appliance (WSA),
it may be necessary to override the SSL verification settings using
ssl_verify as described in SSL verification (ssl_verify).
conda install --channel asmeurer <package> is the same
conda install --channel https://conda.anaconda.org/asmeurer <package>. This
is because the default
channel_alias is https://conda.anaconda.org/ . Whenever
conda is given a channel name that is not a URL, it prepends the
to the front of the name it was given.
You can set the
channel_alias to your own repository. If your repository is at
conda install --channel jsmith <package> would be
the same as
conda install --channel https://yourrepo.com/jsmith <package> .
When creating new environments add these packages by default. You can override
this option at the command prompt with the
--no-default-packages flag. The
default is not to include any packages.
create_default_packages: - ipython
Enable certain features to be tracked by default. The default is to not track
any features. This is similar to adding
mkl to the
track_features: - mkl
conda install updates the given package and all its
dependencies to the latest versions.
If you prefer to only update the packages given explicitly at the command line
and avoid updating existing installed packages as much as possible, you can
Note that conda will still ensure that dependency specifications are
satisfied, so some dependencies may still be updated, or, conversely, this may
prevent packages given at the command line from being updated to their latest
versions. You can always specify versions at the command line to force conda
to install a given version (like
This option can also be enabled or disabled at the command line with the
To avoid updating only specific packages in an environment, a better option may be to pin them. See Pinning packages for more information.
Automatically upload packages built with
conda build to Anaconda.org. The
Build output root directory. This can also be set with the
environment variable. The default is
<CONDA_PREFIX>/conda-bld/, or if you do
not have write permissions to
conda-build: root-dir: ~/conda-builds