pixi 基本使用

Published

2026-02-13

1 pixi 介紹

pixi 是新一代的套件管理工具

2 pixi 安裝

curl -fsSL https://pixi.sh/install.sh | sh

Note

執行完後重啟 terminal

若下載遇到任何問題或需要下載 windows 版本可參考官方網站教學

3 pixi init

pixi init ./pixi-project
cd ./pixi-project

本步驟會在 pixi-project 資料夾創建 pixi.toml，點我看範例

[workspace]
authors = ["benson lee <benson106075@gmail.com>"]
channels = ["conda-forge"]
name = "pixi-project"
platforms = ["linux-64"]
version = "0.1.0"

[tasks]

[dependencies]

修改 channel，新增 bioconda

pixi project channel add conda-forge
pixi project channel add bioconda

本步驟會修改 pixi.toml，在 channels 新增 bioconda ，點我看範例

[workspace]
authors = ["benson lee <benson106075@gmail.com>"]
channels = ["conda-forge", "bioconda"]
name = "pixi-project"
platforms = ["linux-64"]
version = "0.1.0"

[tasks]

[dependencies]

4 pixi add

透過 pixi add 新增套件

pixi add python cowpy numpy

pixi add r-base r-ggplot2

pixi add samtools

本步驟會修改 pixi.toml，在 dependencies 新增各套件，點我看範例

[workspace]
authors = ["benson lee <benson106075@gmail.com>"]
channels = ["conda-forge", "bioconda"]
name = "pixi-project"
platforms = ["linux-64"]
version = "0.1.0"

[tasks]

[dependencies]
python = ">=3.14.3,<3.15"
cowpy = ">=1.1.5,<2"
numpy = ">=2.4.2,<3"
r-base = ">=4.5.2,<4.6"
r-ggplot2 = ">=4.0.2,<5"
samtools = ">=1.22.1,<2"

5 pixi install

安裝 pixi.toml 中定義的所有套件

pixi install

第一次執行會產生 pixi.lock（或在依賴變更時更新）

pixi.lock 會記錄所有套件的確切版本與來源，用於確保環境可重現（reproducible）。

pixi.lock 範例:

version: 6
environments:
  default:
    channels:
    - url: https://conda.anaconda.org/conda-forge/
    - url: https://conda.anaconda.org/bioconda/
    options:
      pypi-prerelease-mode: if-necessary-or-explicit
    packages:
      linux-64:
      - conda: https://conda.anaconda.org/conda-forge/linux-64/_openmp_mutex-4.5-20_gnu.conda
      - conda: https://conda.anaconda.org/conda-forge/noarch/_r-mutex-1.0.1-anacondar_1.tar.bz2
      - conda: https://conda.anaconda.org/conda-forge/linux-64/binutils_impl_linux-64-2.45.1-default_hfdba357_101.conda
      - conda: https://conda.anaconda.org/conda-forge/linux-64/bwidget-1.10.1-ha770c72_1.conda
      - conda: https://conda.anaconda.org/conda-forge/linux-64/bzip2-1.0.8-hda65f42_8.conda

      ...以下省略

5.1 pixi install –locked

使用 lockfile 安裝，確保版本完全一致

pixi install --locked

6 pixi task add

使用 pixi task add 新增

pixi task add run_python python ./src/hello.py

pixi task add run_samtools ./src/samtools_test.sh

pixi task add run_R Rscript ./src/demo_ggplot.R

本步驟會修改 pixi.toml，在 tasks 新增各指令，點我看範例

[workspace]
authors = ["benson lee <benson106075@gmail.com>"]
channels = ["conda-forge", "bioconda"]
name = "pixi-project"
platforms = ["linux-64"]
version = "0.1.0"

[tasks]
run_python = "python ./src/hello.py"
run_samtools = "./src/samtools_test.sh"
run_R = "Rscript ./src/demo_ggplot.R"

[dependencies]
python = ">=3.14.3,<3.15"
cowpy = ">=1.1.5,<2"
numpy = ">=2.4.2,<3"
r-base = ">=4.5.2,<4.6"
r-ggplot2 = ">=4.0.2,<5"
samtools = ">=1.22.1,<2"

7 pixi run

pixi run run_python

預期輸出

 __________________                                                                                                                                                                                       
< Hello Pixi fans! >
 ------------------
     \   ^__^
      \  (oo)\_______
         (__)\       )\/\
           ||----w |
           ||     ||
任意一個 1~100的數值

同樣也能測試看看這兩個功能

pixi run run_samtools
pixi run run_R