Lost in Zero Space -- An Empirical Comparison of 0.y.z Releases in Four Software Package Distributions

The notebooks in "notebooks/" require the dependencies specified in "requirements.txt" to be installed.
They rely on data files in "data/". These data can be obtained by running the "convert.py" scripts in that folder.
The script requires data files from "data-raw/". These files can be generated by running "extract.py" in that folder.
This script requires the libraries.io data dump, as explained in the README file contained in this folder.

If you don't have these data, or if you don't want to download them, you can ask for the required data/*.csv.gz files by email.

`notebooks/`目录下的Jupyter笔记本需安装`requirements.txt`中指定的依赖项。该代码笔记本依赖`data/`目录下的数据文件，此类数据可通过运行该目录下的`convert.py`脚本获取。`convert.py`脚本需依赖`data-raw/`目录下的数据文件，这些文件可通过运行该目录下的`extract.py`脚本生成。如该目录下的`README`文件所述，`extract.py`脚本需依赖`libraries.io`的数据转储文件。若您未获取上述数据，或不愿手动下载，可通过邮件申请所需的`data/*.csv.gz`格式数据文件。