Commit 6ccdbbc
James R. Evans
JRE - Modified 'use' so that it will only warn if the requested backend is different that what is currently set.
1 parent 9f2cb13 commit 6ccdbbc
1 file changed
Lines changed: 11 additions & 9 deletions
| Original file line number | Diff line number | Diff line change | |
|---|---|---|---|
@@ -999,9 +999,18 @@ def use(arg, warn=True, force=False): | |||
| 999 | 999 | :func:`matplotlib.get_backend`. | |
| 1000 | 1000 | ||
| 1001 | 1001 | """ | |
| 1002 | + # Lets determine the proper backend name first | ||
| 1003 | + if arg.startswith('module://'): | ||
| 1004 | + name = arg | ||
| 1005 | + else: | ||
| 1006 | + # Lowercase only non-module backend names (modules are case-sensitive) | ||
| 1007 | + arg = arg.lower() | ||
| 1008 | + name = validate_backend(arg) | ||
| 1009 | + | ||
| 1002 | 1010 | # Check if we've already set up a backend | |
| 1003 | 1011 | if 'matplotlib.backends' in sys.modules: | |
| 1004 | - if warn: | ||
| 1012 | + # Warn only if called with a different name | ||
| 1013 | + if (rcParams['backend'] != name) and warn: | ||
| 1005 | 1014 | warnings.warn(_use_error_msg) | |
| 1006 | 1015 | ||
| 1007 | 1016 | # Unless we've been told to force it, just return | |
@@ -1011,14 +1020,7 @@ def use(arg, warn=True, force=False): | |||
| 1011 | 1020 | else: | |
| 1012 | 1021 | need_reload = False | |
| 1013 | 1022 | ||
| 1014 | - # Set-up the proper backend name | ||
| 1015 | - if arg.startswith('module://'): | ||
| 1016 | - name = arg | ||
| 1017 | - else: | ||
| 1018 | - # Lowercase only non-module backend names (modules are case-sensitive) | ||
| 1019 | - arg = arg.lower() | ||
| 1020 | - name = validate_backend(arg) | ||
| 1021 | - | ||
| 1023 | + # Store the backend name | ||
| 1022 | 1024 | rcParams['backend'] = name | |
| 1023 | 1025 | ||
| 1024 | 1026 | # If needed we reload here because a lot of setup code is triggered on | |
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