API Reference

pdm.core.Core

A high level object that manages all classes and configurations

add_config(name, config_item) staticmethod

Add a config item to the configuration class.

Parameters:

Name	Type	Description	Default
name	str	The name of the config item	required
config_item	pdm.project.config.ConfigItem	The config item to add	required

create_project(root_path=None, is_global=False, global_config=None)

Create a new project object

Parameters:

Name	Type	Description	Default
root_path	PathLike	The path to the project root directory	None
is_global	bool	Whether the project is a global project	False
global_config	str	The path to the global config file	None

Returns:

Type	Description
Project	The project object

load_plugins()

Import and load plugins under pdm.plugin namespace A plugin is a callable that accepts the core object as the only argument.

Example

def my_plugin(core: pdm.core.Core) -> None:
    ...

main(args=None, prog_name=None, obj=None, **extra)

The main entry function

register_command(command, name=None)

Register a subcommand to the subparsers, with an optional name of the subcommand.

Parameters:

Name	Type	Description	Default
command	Type[pdm.cli.commands.base.BaseCommand]	The command class to register	required
name	str	The name of the subcommand, if not given, command.name is used	None

Signals

New in version 1.12.0

The signal definition for PDM.

Example

from pdm.signals import post_init, post_install

def on_post_init(project):
    project.core.ui.echo("Project initialized")
# Connect to the signal
post_init.connect(on_post_init)
# Or use as a decorator
@post_install.connect
def on_post_install(project, candidates, dry_run):
    project.core.ui.echo("Project install succeeded")

post_build: NamedSignal = pdm_signals.signal('post_build') module-attribute

Called after a project is built.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required
artifacts	Sequence[str]	The locations of built artifacts	required
config_settings	dict[str, str] | None	Additional config settings passed via args	required

post_init: NamedSignal = pdm_signals.signal('post_init') module-attribute

Called after a project is initialized.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required

post_install: NamedSignal = pdm_signals.signal('post_install') module-attribute

Called after a project is installed.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required
candidates	dict[str, Candidate]	The candidates installed	required
dry_run	bool	If true, won't perform any actions	required

post_lock: NamedSignal = pdm_signals.signal('post_lock') module-attribute

Called after a project is locked.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required
resolution	dict[str, Candidate]	The resolved candidates	required
dry_run	bool	If true, won't perform any actions	required

post_publish: NamedSignal = pdm_signals.signal('post_publish') module-attribute

Called after a project is published.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required

post_run: NamedSignal = pdm_signals.signal('post_run') module-attribute

Called after any run.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required
script	str	the script name	required
args	Sequence[str]	the command line provided arguments	required

post_script: NamedSignal = pdm_signals.signal('post_script') module-attribute

Called after any script.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required
script	str	the script name	required
args	Sequence[str]	the command line provided arguments	required

post_use: NamedSignal = pdm_signals.signal('post_use') module-attribute

Called after use switched to a new Python version.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required
python	PythonInfo	Informations about the new Python interpreter	required

pre_build: NamedSignal = pdm_signals.signal('pre_build') module-attribute

Called before a project is built.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required
dest	str	The destination location	required
config_settings	dict[str, str] | None	Additional config settings passed via args	required

pre_install: NamedSignal = pdm_signals.signal('pre_install') module-attribute

Called before a project is installed.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required
candidates	dict[str, Candidate]	The candidates to install	required
dry_run	bool	If true, won't perform any actions	required

pre_lock: NamedSignal = pdm_signals.signal('pre_lock') module-attribute

Called before a project is locked.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required
requirements	list[Requirement]	The requirements to lock	required
dry_run	bool	If true, won't perform any actions	required

pre_publish: NamedSignal = pdm_signals.signal('pre_publish') module-attribute

Called before a project is published.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required

pre_run: NamedSignal = pdm_signals.signal('pre_run') module-attribute

Called before any run.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required
script	str	the script name	required
args	Sequence[str]	the command line provided arguments	required

pre_script: NamedSignal = pdm_signals.signal('pre_script') module-attribute

Called before any script.

Parameters:

Name	Type	Description	Default
project	Project	The project object	required
script	str	the script name	required
args	Sequence[str]	the command line provided arguments	required