pathvalidate
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
- file name/path argument validator/sanitizer for
argparseandclick - Multi platform support:
- sanitize/validate file names/paths for a specific platform (
Linux/Windows/macOS/Posix) oruniversal(platform independent)
- sanitize/validate file names/paths for a specific platform (
- Multibyte character support
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: | invalid char found: invalids=(':', '*', '/', '"', '?', '>', '|', '<'), value='fi:l*e/p"a?t>h|.t<xt', reason=INVALID_CHARACTER, target-platform=Windows
'COM1' is a reserved name, reason=RESERVED_NAME, target-platform=universal
|
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("--filepath", type=validate_filepath_arg)
parser.add_argument("--filename", type=validate_filename_arg)
options = parser.parse_args()
if options.filename:
print("filename: {}".format(options.filename))
if options.filepath:
print("filepath: {}".format(options.filepath)) |
|---|---|
| Output: | $ ./examples/argparse_validate.py --filename eg
filename: eg
$ ./examples/argparse_validate.py --filepath e?g
usage: argparse_validate.py [-h] [--filepath FILEPATH] [--filename FILENAME]
argparse_validate.py: error: argument --filepath: invalid char found: invalids=('?'), value='e?g', reason=INVALID_CHARACTER, target-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, filepath):
if filename:
click.echo("filename: {}".format(filename))
if filepath:
click.echo("filepath: {}".format(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]
Error: Invalid value for "--filepath": invalid char found: invalids=('?'), value='e?g', reason=INVALID_CHARACTER, target-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("filename: {}".format(filename))
if filepath:
click.echo("filepath: {}".format(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 3.6+ no external dependencies.
Documentation
Sponsors
