Coverage for python / lsst / daf / butler / tests / server_available.py: 85%

1# This file is part of daf_butler. 

2# 

3# Developed for the LSST Data Management System. 

4# This product includes software developed by the LSST Project 

5# (http://www.lsst.org). 

6# See the COPYRIGHT file at the top-level directory of this distribution 

7# for details of code ownership. 

8# 

9# This software is dual licensed under the GNU General Public License and also 

10# under a 3-clause BSD license. Recipients may choose which of these licenses 

11# to use; please see the files gpl-3.0.txt and/or bsd_license.txt, 

12# respectively. If you choose the GPL option then the following text applies 

13# (but note that there is still no warranty even if you opt for BSD instead): 

14# 

15# This program is free software: you can redistribute it and/or modify 

16# it under the terms of the GNU General Public License as published by 

17# the Free Software Foundation, either version 3 of the License, or 

18# (at your option) any later version. 

19# 

20# This program is distributed in the hope that it will be useful, 

21# but WITHOUT ANY WARRANTY; without even the implied warranty of 

22# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

23# GNU General Public License for more details. 

24# 

25# You should have received a copy of the GNU General Public License 

26# along with this program. If not, see <http://www.gnu.org/licenses/>. 

27 

28from __future__ import annotations 

29 

30__all__ = ( 

31 "butler_server_import_error", 

32 "butler_server_is_available", 

33) 

34 

35butler_server_is_available = True 

36"""`True` if all dependencies required to use Butler server and RemoteButler 

37are installed. 

38""" 

39 

40butler_server_import_error = "" 

41"""String containing a human-readable error message explaining why the server 

42is not available, if ``butler_server_is_available`` is `False`. 

43""" 

44 

45try: 

46 # Dependencies required by Butler server and RemoteButler, but not 

47 # available in LSST Pipelines Stack. 

48 import fastapi # noqa: F401 

49 import httpx # noqa: F401 

50 import safir # noqa: F401 

51except ImportError as e: 

52 butler_server_is_available = False 

53 butler_server_import_error = f"Server libraries could not be loaded: {str(e)}"