mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 08:59:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 11

GH-88597: Added command line interface to UUID module. (#99463)

Browse source 
The `uuid` module now supports command line usage.

```python
❯ ./python.exe -m uuid             
5f2d57b1-90e8-417c-ba5d-69b9b6f74289

❯ ./python.exe -m uuid -h          
usage: uuid.py [-h] [-u {uuid1,uuid3,uuid4,uuid5}] [-ns NAMESPACE] [-n NAME]
...
```
This commit is contained in:
achhina 2023-01-22 01:59:31 -05:00 • committed by GitHub
parent c1c5882359
commit 95f5b05a8c
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
6 changed files with 174 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

49
Lib/uuid.py
View file

@ -728,9 +728,58 @@ def uuid5(namespace, name):
hash = sha1(namespace.bytes + bytes(name, "utf-8")).digest()
return UUID(bytes=hash[:16], version=5)
def main():
"""Run the uuid command line interface."""
uuid_funcs = {"uuid1": uuid1,
"uuid3": uuid3,
"uuid4": uuid4,
"uuid5": uuid5}
uuid_namespace_funcs = ("uuid3", "uuid5")
namespaces = {
"NAMESPACE_DNS": NAMESPACE_DNS,
"NAMESPACE_URL": NAMESPACE_URL,
"NAMESPACE_OID": NAMESPACE_OID,
"NAMESPACE_X500": NAMESPACE_X500
}
import argparse
parser = argparse.ArgumentParser(
description="Generates a uuid using the selected uuid function.")
parser.add_argument("-u", "--uuid", choices=uuid_funcs.keys(), default="uuid4",
help="The function to use to generate the uuid. "
"By default uuid4 function is used.")
parser.add_argument("-ns", "--namespace",
help="The namespace used as part of generating the uuid. "
"Only required for uuid3/uuid5 functions.")
parser.add_argument("-n", "--name",
help="The name used as part of generating the uuid. "
"Only required for uuid3/uuid5 functions.")
args = parser.parse_args()
uuid_func = uuid_funcs[args.uuid]
namespace = args.namespace
name = args.name
if args.uuid in uuid_namespace_funcs:
if not namespace or not name:
parser.error(
"Incorrect number of arguments. "
f"{args.uuid} requires a namespace and a name. "
"Run 'python -m uuid -h' for more information."
)
namespace = namespaces[namespace] if namespace in namespaces else UUID(namespace)
print(uuid_func(namespace, name))
else:
print(uuid_func())
# The following standard UUIDs are for use with uuid3() or uuid5().
NAMESPACE_DNS = UUID('6ba7b810-9dad-11d1-80b4-00c04fd430c8')
NAMESPACE_URL = UUID('6ba7b811-9dad-11d1-80b4-00c04fd430c8')
NAMESPACE_OID = UUID('6ba7b812-9dad-11d1-80b4-00c04fd430c8')
NAMESPACE_X500 = UUID('6ba7b814-9dad-11d1-80b4-00c04fd430c8')
if __name__ == "__main__":
main()