[issue33993] zipfile module weird behavior when used with zipinfo

[Micheal Gardner]

Change by Micheal Gardner :


--
components: Library (Lib)
nosy: Micheal Gardner
priority: normal
severity: normal
status: open
title: zipfile module weird behavior when used with zipinfo
type: behavior
versions: Python 2.7, Python 3.6

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[issue33993] zipfile module weird behavior when used with zipinfo

[Micheal Gardner]

New submission from Micheal Gardner :

when i want to zip a empty folder, i use following code

```

import zipfile

zfile = zipfile.ZipFile("tmp.zip",'w')
zif = zipfile.ZipInfo("tmp/")
zfile.writestr(zif,"")
zfile.close()
```

but in this case, things become weird.

```
# 先造一个测试文件夹
mkdir /tmp/test_folder/
touch /tmp/test_folder/test.md
```

```
import zipfile
file_path = "/tmp/test_folder/test.md"
rel_name = "test.md"
zfile = zipfile.ZipFile("tmp.zip",'w')
zif = zipfile.ZipInfo("tmp/")
zfile.writestr(zif,"")
zfile.write(file_path, rel_name)
zfile.close()
```

decompression expect 

```
$ tree tmp
tmp
├── test.md

1 file
```

decompression actual

```
$ tree tmp
tmp
├── test.md
└── tmp

1 directory, 1 file
```

--

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