Python linecache Module
Example
Confirm that random-access line retrieval is available:
import linecache
print(hasattr(linecache, "getline"))
Try it Yourself »
Definition and Usage
The linecache module allows you to get any line from any file, while caching the results for efficiency.
It is commonly used by tracebacks and debuggers to retrieve source lines without loading entire files into memory.
Members
| Member | Description |
|---|---|
| getline() | Return a specific line from a file, using a cache to avoid disk I/O. |
| clearcache() | Clear the cache of filenames and lines. |
| checkcache() | Validate cache entries and remove outdated ones. |
