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Description:

pathvalidate 3.2.1

pathvalidate

Summary

Features
CLI tool

Examples

Sanitize a filename
Sanitize a filepath
Validate a filename
Check a filename
filename/filepath validator for argparse
filename/filepath sanitizer for argparse
filename/filepath validator for click
filename/filepath sanitizer for click
For more information

Installation

Installation: pip
Installation: conda
Installation: apt

Dependencies
Documentation
Sponsors

Summary
pathvalidate is a Python library to sanitize/validate a string such as filenames/file-paths/etc.

Features

Sanitize/Validate a string as a:

file name
file path

Sanitize will do:

Remove invalid characters for a target platform
Replace reserved names for a target platform
Normalize
Remove unprintable characters

Argument validator/sanitizer for argparse and click

Multi platform support:

Linux
Windows
macOS
POSIX: POSIX-compliant systems (Linux, macOS, etc.)
universal: platform independent

Multibyte character support

CLI tool
You can find this package’s command line interface tool at the pathvalidate-cli repository.

Examples

Sanitize a filename

Sample Code:
from pathvalidate import sanitize_filename

fname = "fi:l*e/p\"a?t>h|.t<xt"
print(f"{fname} -> {sanitize_filename(fname)}\n")

fname = "\0_a*b:c<d>e%f/(g)h+i_0.txt"
print(f"{fname} -> {sanitize_filename(fname)}\n")

Output:
fi:l*e/p"a?t>h|.t<xt -> filepath.txt

_a*b:c<d>e%f/(g)h+i_0.txt -> _abcde%f(g)h+i_0.txt

The default target platform is universal.
i.e. the sanitized file name is valid for any platform.

Sanitize a filepath

Sample Code:
from pathvalidate import sanitize_filepath

fpath = "fi:l*e/p\"a?t>h|.t<xt"
print(f"{fpath} -> {sanitize_filepath(fpath)}\n")

fpath = "\0_a*b:c<d>e%f/(g)h+i_0.txt"
print(f"{fpath} -> {sanitize_filepath(fpath)}\n")

Output:
fi:l*e/p"a?t>h|.t<xt -> file/path.txt

_a*b:c<d>e%f/(g)h+i_0.txt -> _abcde%f/(g)h+i_0.txt

Validate a filename

Sample Code:
import sys
from pathvalidate import ValidationError, validate_filename

try:
validate_filename("fi:l*e/p\"a?t>h|.t<xt")
except ValidationError as e:
print(f"{e}\n", file=sys.stderr)

try:
validate_filename("COM1")
except ValidationError as e:
print(f"{e}\n", file=sys.stderr)

Output:
[PV1100] invalid characters found: platform=universal, description=invalids=('/'), value='fi:l*e/p"a?t>h|.t<xt'

[PV1002] found a reserved name by a platform: 'COM1' is a reserved name, platform=universal, reusable_name=False

Check a filename

Sample Code:
from pathvalidate import is_valid_filename, sanitize_filename

fname = "fi:l*e/p\"a?t>h|.t<xt"
print(f"is_valid_filename('{fname}') return {is_valid_filename(fname)}\n")

sanitized_fname = sanitize_filename(fname)
print(f"is_valid_filename('{sanitized_fname}') return {is_valid_filename(sanitized_fname)}\n")

Output:
is_valid_filename('fi:l*e/p"a?t>h|.t<xt') return False

is_valid_filename('filepath.txt') return True

filename/filepath validator for argparse

Sample Code:
from argparse import ArgumentParser

from pathvalidate.argparse import validate_filename_arg, validate_filepath_arg

parser = ArgumentParser()
parser.add_argument("--filename", type=validate_filename_arg)
parser.add_argument("--filepath", type=validate_filepath_arg)
options = parser.parse_args()

if options.filename:
print(f"filename: {options.filename}")

if options.filepath:
print(f"filepath: {options.filepath}")

Output:
$ ./examples/argparse_validate.py --filename eg
filename: eg
$ ./examples/argparse_validate.py --filename e?g
usage: argparse_validate.py [-h] [--filename FILENAME] [--filepath FILEPATH]
argparse_validate.py: error: argument --filename: [PV1100] invalid characters found: invalids=(':'), value='e:g', platform=Windows

Note
validate_filepath_arg consider platform as of "auto" if the input is an absolute file path.

filename/filepath sanitizer for argparse

Sample Code:
from argparse import ArgumentParser

from pathvalidate.argparse import sanitize_filename_arg, sanitize_filepath_arg

parser = ArgumentParser()
parser.add_argument("--filename", type=sanitize_filename_arg)
parser.add_argument("--filepath", type=sanitize_filepath_arg)
options = parser.parse_args()

if options.filename:
print("filename: {}".format(options.filename))

if options.filepath:
print("filepath: {}".format(options.filepath))

Output:
$ ./examples/argparse_sanitize.py --filename e/g
filename: eg

Note
sanitize_filepath_arg is set platform as "auto".

filename/filepath validator for click

Sample Code:
import click

from pathvalidate.click import validate_filename_arg, validate_filepath_arg

@click.command()
@click.option("--filename", callback=validate_filename_arg)
@click.option("--filepath", callback=validate_filepath_arg)
def cli(filename: str, filepath: str) -> None:
if filename:
click.echo(f"filename: {filename}")
if filepath:
click.echo(f"filepath: {filepath}")

if __name__ == "__main__":
cli()

Output:
$ ./examples/click_validate.py --filename ab
filename: ab
$ ./examples/click_validate.py --filepath e?g
Usage: click_validate.py [OPTIONS]
Try 'click_validate.py --help' for help.

Error: Invalid value for '--filename': [PV1100] invalid characters found: invalids=('?'), value='e?g', platform=Windows

filename/filepath sanitizer for click

Sample Code:
import click

from pathvalidate.click import sanitize_filename_arg, sanitize_filepath_arg

@click.command()
@click.option("--filename", callback=sanitize_filename_arg)
@click.option("--filepath", callback=sanitize_filepath_arg)
def cli(filename, filepath):
if filename:
click.echo(f"filename: {filename}")
if filepath:
click.echo(f"filepath: {filepath}")

if __name__ == "__main__":
cli()

Output:
$ ./examples/click_sanitize.py --filename a/b
filename: ab

For more information
More examples can be found at
https://pathvalidate.rtfd.io/en/latest/pages/examples/index.html

Installation

Installation: pip
pip install pathvalidate

Installation: conda
conda install -c thombashi pathvalidate

Installation: apt
sudo add-apt-repository ppa:thombashi/ppa
sudo apt update
sudo apt install python3-pathvalidate

Dependencies
Python 3.7+
no external dependencies.

Documentation
https://pathvalidate.rtfd.io/

Sponsors

Become a sponsor