https://github.com/Yelrose/linecache_light

A python package that can fast random access any lines in a large file without high memory cost.
https://github.com/Yelrose/linecache_light

Last synced: 3 months ago
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A python package that can fast random access any lines in a large file without high memory cost.

• Host: GitHub
• URL: https://github.com/Yelrose/linecache_light
• Owner: Yelrose
• License: mit
• Created: 2017-03-14T02:38:35.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2022-04-19T05:08:00.000Z (over 2 years ago)
• Last Synced: 2024-07-14T02:44:03.881Z (4 months ago)
• Language: Python
• Size: 12.7 KB
• Stars: 18
• Watchers: 3
• Forks: 5
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# linecache_light

A python package that can fast random access any lines in a large file without high memory cost.

## Usage

It's avaiable to install linecache_light throught pip.

```

	pip install linecache_light

```

The basic usage is followed:

```

	from linecache_light import LinceCache

	linecache = LineCache('large_file.txt', cache_suffix='.cache')

	# This will create a cache file with suffix in your file location

	# Noticing it may cost a long time to cache the file since the LineCache will scan through the document.

	# If the cache file has already existed, it will reload the cache file in a much short time without scan through the document again.

	

	# Check the total number of lines

	print len(linecache)

	

	# Access the lines by line index

	print linecache[5]

	

	# Access the lines by slice

	print linecache[3:5]

	print linecache[-1]

	

	# Access the lines by a iterable list of index

	print linecache[[3,2,1,5]]

```