Flash back of large file decompression program.

[一叶遮天]

I pack it into a separate exe program. When decompressing the 7z format compressed package of large files (> 200MB), the program will flash back. It is OK to decompress small files. My computer configuration is not bad, with 16g running memory.

[Hiroshi Miura]

Please report according to template.

**Describe the bug**

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**Related issue**
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**To Reproduce**
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Steps to reproduce the behavior:
(example)
1. Prepare test data attached as 'file' in current directory.
2. Run following code with python3.

import py7zr
archive = py7zr.SevenZipFile('test.7z','w')
archive.writeall('file')
archive.close()

3. test.7z is produced
4. run command in ternminal '7z l test.7z'
5. See error
-->

**Expected behavior**
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**Environment (please complete the following information):**
 - OS: <!-- [e.g. Windows 10, Ubuntu Linux 18.04.01] -->
 - Python <!-- [e.g. 3.6, pypy3.6.9-7.3.0] -->
 - py7zr version: <!-- [e.g. v0.5b1, commit #123456 on master] -->

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[Hiroshi Miura]

There is no information provided.