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https://github.com/suurjaak/pyscripts
Various small Python utility scripts
https://github.com/suurjaak/pyscripts
Last synced: 8 days ago
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Various small Python utility scripts
- Host: GitHub
- URL: https://github.com/suurjaak/pyscripts
- Owner: suurjaak
- Created: 2015-10-20T14:42:07.000Z (about 9 years ago)
- Default Branch: master
- Last Pushed: 2015-10-20T14:43:44.000Z (about 9 years ago)
- Last Synced: 2023-03-12T09:22:45.454Z (over 1 year ago)
- Language: Python
- Size: 133 KB
- Stars: 5
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
Various small Python utility scripts
====================================
### [countbits.py](countbits.py)
A command-line tool written just for lark:
in communications theory the assumption is that a 0-bit is as likely as 1,
but how is the situation in filesystems?
```
usage: countbits.py [-h] [-d DIR [DIR ...]] [-nr] [-s] [--db DBPATH]
[WILDCARD [WILDCARD ...]]
Count the bits (0/1 ratio) in file system files.
positional arguments:
WILDCARD one or more filename patterns to match
optional arguments:
-h, --help show this help message and exit
-d DIR [DIR ...], --directory DIR [DIR ...]
directories to process, filesystem root by default
-nr, --nonrecursive skip subdirectories
-s, --statsonly show accumulated statistics and exit
--db DBPATH cache-database path, by default in program directory.
Use :memory: or empty string for no caching.
```
My result:
```
TOTAL ZERO/ONE 58% vs 42% 99,950,872,411 bytes 699,763 files
-------------------------------------------------------------------------------
.dll 63% vs 37% 15,686,096,949 bytes 25,414 (16% size)
.avi 51% vs 49% 12,809,622,256 bytes 180 (13% size)
.bin 61% vs 39% 8,762,136,890 bytes 314 (9% size)
.exe 55% vs 45% 7,777,679,103 bytes 6,413 (8% size)
.db 62% vs 38% 6,963,647,404 bytes 384 (7% size)
54% vs 46% 3,935,827,090 bytes 36,492 (4% size)
.jpg 51% vs 49% 2,709,945,949 bytes 15,781 (3% size)
.txt 62% vs 38% 2,652,266,242 bytes 16,982 (3% size)
.pdf 50% vs 50% 2,598,121,519 bytes 1,475 (3% size)
.msi 51% vs 49% 2,353,022,146 bytes 241 (2% size)
.dat 51% vs 49% 1,724,590,136 bytes 3,105 (2% size)
.html 56% vs 44% 1,523,280,768 bytes 41,992 (2% size)
.jar 58% vs 42% 1,384,024,774 bytes 2,817 (1% size)
.xml 61% vs 39% 1,117,032,485 bytes 7,034 (1% size)
.o 69% vs 31% 1,016,419,994 bytes 13,390 (1% size)
..
```
It depends heavily on file types, but in general 0 is slightly more represented.
### [db.py](db.py)
Simple convenience wrapper class for SQLite.
Example usage:
```python
db.init(":memory:", "CREATE TABLE test (id INTEGER PRIMARY KEY, val TEXT)")
db.insert("test", val=None)
for i in range(5): db.insert("test", {"val": i})
db.fetch("test", id=1)
db.fetchall("test", order="val", limit=3)
db.update("test", {"val": "new"}, val=None)
db.fetchall("test", val=("IN", range(3)))
db.delete("test", id=5)
db.execute("DROP TABLE test")
```
### [duplicates.py](duplicates.py)
Command-line tool for detecting duplicate files.
```
usage: duplicates.py [-h] [-d DIR [DIR ...]] [-t [...]] [-r] [-s]
[WILDCARD [WILDCARD ...]]
List files having the same content.
positional arguments:
WILDCARD one or more filename patterns to match
optional arguments:
-h, --help show this help message and exit
-d DIR [DIR ...], --directory DIR [DIR ...]
directories to process, defaults to working directory
-t [ ...], --type [ ...]
file types to match (image, audio, video)
-r, --recursive process subdirectories
-s, --sizeonly match by file size only
```
### [relayserver.py](relayserver.py)
Simple network relay program - allows any number of clients to make a network
connection, relays sent data between all clients. Can log data to local db.
```
usage: relayserver.py [-h] [-p PORT] [--db [DB]] [--verbose] [-t]
A simple network relay server to exchange data between clients.
optional arguments:
-h, --help show this help message and exit
-p PORT, --port PORT TCP port to use, 9000 by default
--db [DB] SQLite database to log traffic to, if any. If DB not
given, defaults to 'relaylog.db' in program directory.
--verbose print activity messages
-t, --test do a test run with dummy clients
```
### [serialclient.py](serialclient.py)
Simple serial port reader-writer class using background threads.
Needs pyserial.
Example usage:
```python
import serialclient
def callback(data):
print("Incoming serial data: %r." % data)
client = serialclient.SerialClient("/dev/ttyAMA0", 115200, callback)
client.start()
client.send("outgoing data is queued and written in the background")
```
### [shift_subtitles.py](shift_subtitles.py)
Command-line tool for advancing/delaying movie subtitle timestamps.
```
usage: shift_subtitles.py SUBTITLEFILE SECONDS
Shifts subtitle timestamps in an SRT file by a given amount.
```
### [thumbnails_mpc.py](thumbnails_mpc.py)
Command-line tool for making video thumbnails by invoking Media Player Classic.
Windows-only.
```
usage: thumbnails_mpc.py [WILDCARD [WILDCARD ...]]
Creates thumbnails for videos in current directory, using Media Player Classic.
```
### [util.py](util.py)
All sorts of handy little utility functions accumulated over the years.
License
-------
Published in 2015 by Erki Suurjaak.
Released as free open source software under the
[Creative Commons CC0 1.0 Universal Public Domain Dedication](https://creativecommons.org/publicdomain/zero/1.0/). 