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Display installed Python projects as a tree of dependencies

Project description

Introduction

Display installed Python projects as a tree of dependencies.

Features

  • Output compatible with requirements.txt
  • Show dependencies or dependents
  • Detect circular dependencies
  • Detect missing dependencies

Usage

$ deptree --help
usage: deptree [-h] [--version] [-r] [-f] [project [project ...]]

Display installed Python projects as a tree of dependencies

positional arguments:
  project        name of project whose dependencies (or dependents) to show

optional arguments:
  -h, --help     show this help message and exit
  --version      show program's version number and exit
  -r, --reverse  show dependent projects instead of dependencies
  -f, --flat     show flat list instead of tree

Examples

$ deptree cryptography
cryptography==2.9  # cryptography
  cffi==1.14.0  # cffi!=1.11.3,>=1.8
    pycparser==2.20  # pycparser
  six==1.14.0  # six>=1.4.1
$ deptree --reverse cryptography
cryptography==2.9  # -
  SecretStorage==3.1.2  # cryptography
    keyring==21.2.0  # SecretStorage>=3; sys_platform == "linux"
      twine==3.1.1  # keyring>=15.1
$ deptree --flat cryptography
cffi==1.14.0
# pycparser

cryptography==2.9
# six>=1.4.1
# cffi!=1.11.3,>=1.8

pycparser==2.20

six==1.14.0
$ deptree --flat --reverse cryptography
# SecretStorage: cryptography
cryptography==2.9

# twine: keyring>=15.1
keyring==21.2.0

# keyring: SecretStorage>=3; sys_platform == "linux"
SecretStorage==3.1.2

twine==3.1.1
$ deptree CircularDependencyA
CircularDependencyA==0.0.0  # CircularDependencyA
  CircularDependencyB==0.0.0  # CircularDependencyB
    CircularDependencyA  # !!! CIRCULAR CircularDependencyA

Installation

For better comfort, use as a single-file isolated zipapp:

For example:

$ python3 -m pip install --target ./deptree/ deptree
$ python3 -m zipapp --python '/usr/bin/env python3' --main 'deptree.cli:main' ./deptree/
$ mv ./deptree.pyz ~/.local/bin/deptree

Or use zapp, or toolmaker.

This way the tool can be used in virtual environments without installing it in the virtual environments. The tool can then see the projects installed in the virtual environment but without seeing itself.

Details

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