Tapipy

25.4.0 verified Fri May 01 auth: no python

Python client library for the Tapis API Framework, providing programmatic access to Tapis services for HPC, cloud computing, and data management. Current version is 25.4.0, with frequent releases aligned to the Tapis platform.

pip install tapipy

Common errors

error AttributeError: module 'tapipy' has no attribute 'Tapis' ↓

cause Incorrect import; `Tapis` class is not at the top level.

fix

Use from tapipy.tapis import Tapis

error TypeError: __init__() got multiple values for argument 'base_url' ↓

cause Passing `tenant_id` as first positional argument and also `base_url` as keyword in older code.

fix

Remove the positional argument and only use base_url=...

Warnings

breaking In v25.x, the `Tapis` constructor no longer accepts `tenant_id` as a first positional argument; use `base_url` instead. ↓

fix Replace `t = Tapis('dev', ...)` with `t = Tapis(base_url='https://dev.tapis.io', ...)`

deprecated The `tapis_available()` method is deprecated in v25.4.0 and may be removed in a future release. ↓

fix Use `t.ping()` or check service availability via API calls.

gotcha Token management requires explicit refresh; the library does not automatically refresh expired tokens. ↓

fix Call `t.get_tokens()` again or use a token refresh strategy.

Imports

Tapis
wrong
```
import tapipy
```
correct
```
from tapipy.tapis import Tapis
```
Tapis client class is in tapipy.tapis module, not top-level.

Quickstart

Initialize a Tapis client and authenticate. Use environment variables for credentials.

from tapipy.tapis import Tapis
import os

t = Tapis(
    base_url=os.environ.get('TAPIS_BASE_URL', 'https://example.tapis.io'),
    username=os.environ.get('TAPIS_USERNAME', ''),
    password=os.environ.get('TAPIS_PASSWORD', '')
)
t.get_tokens()
print(t.tapis_available())