install

Conda package installation logic.

Core logic for conda [create|install|update|remove] commands.

See conda.cli.main_create, conda.cli.main_install, conda.cli.main_update, and conda.cli.main_remove for the entry points into this module.

Classes

TryRepodata
Repodatas

Functions

reinstall_packages(→ int)	Reinstall packages using conda install.
clone(src_arg, dst_prefix[, json, quiet, index_args])
get_revision(arg[, json])
get_index_args(→ dict[str, any])	Returns a dict of args required for fetching an index
validate_install_command(prefix[, command])	Executes a set of validations that are required before any installation
ensure_update_specs_exist(prefix, specs)	Checks that each spec that is requested as an update exists in the prefix
install(args, parser[, command])	Logic for conda install, conda update, and conda create.
install_clone(args, parser)	Executes an install of a new conda environment by cloning.
install_revision(args, parser)	Install a previous version of a conda environment
revert_actions(prefix[, revision, index])
handle_txn(unlink_link_transaction, prefix, args, newenv)

Attributes

stderrlog

stderrlog

reinstall_packages(args, specs: list[str], **kwargs) → int

Reinstall packages using conda install.

Helper for health fixes that need to reinstall packages.

Parameters:

• args -- Parsed arguments namespace

• specs -- Package specs to reinstall

• kwargs -- Override default install options (e.g., force_reinstall=True)

Returns:

Exit code from install

clone(src_arg, dst_prefix, json=False, quiet=False, index_args=None)

get_revision(arg, json=False)

get_index_args(args) → dict[str, any]

Returns a dict of args required for fetching an index :param args: The args provided by the cli :returns: dict of index args

class TryRepodata(notify_success, repodata, last_repodata, index_args, allowed_errors)

notify_success

repodata

last_repodata

index_args

allowed_errors

__enter__()

__exit__(exc_type, exc_value, traceback)

class Repodatas(repodata_fns, index_args, allows_errors=())

repodata_fns

index_args

success = False

allowed_errors

__iter__()

succeed()

validate_install_command(prefix: str, command: str = 'install')

Executes a set of validations that are required before any installation command is executed. This includes:

• ensure the configuration is valid

• ensuring the user in not an admin

• ensure the user is not forcing 32bit installs in the root prefix

Parameters:

• prefix -- The prefix where the environment will be created

• command -- Type of operation being performed

Raises:

error if the configuration for the install is bad

ensure_update_specs_exist(prefix: str, specs: list[str])

Checks that each spec that is requested as an update exists in the prefix

Parameters:

• prefix -- The target install prefix

• specs -- List of specs to be updated

Raises:

• CondaError -- if there is an invalid spec provided

• PackageNotInstalledError -- if the requested specs to install don't exist in the prefix

install(args, parser, command='install')

Logic for conda install, conda update, and conda create.

install_clone(args, parser)

Executes an install of a new conda environment by cloning.

install_revision(args, parser)

Install a previous version of a conda environment

revert_actions(prefix, revision=-1, index: conda.core.index.Index | None = None)

handle_txn(unlink_link_transaction, prefix, args, newenv, remove_op=False)