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@@ -1,94 +1,94 b'' | |||||
1 | """ Import Qt in a manner suitable for an IPython kernel. |
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1 | """ Import Qt in a manner suitable for an IPython kernel. | |
2 |
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2 | |||
3 | This is the import used for the `gui=qt` or `matplotlib=qt` initialization. |
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3 | This is the import used for the `gui=qt` or `matplotlib=qt` initialization. | |
4 |
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4 | |||
5 | Import Priority: |
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5 | Import Priority: | |
6 |
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6 | |||
7 | if Qt has been imported anywhere else: |
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7 | if Qt has been imported anywhere else: | |
8 | use that |
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8 | use that | |
9 |
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9 | |||
10 | if matplotlib has been imported and doesn't support v2 (<= 1.0.1): |
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10 | if matplotlib has been imported and doesn't support v2 (<= 1.0.1): | |
11 | use PyQt4 @v1 |
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11 | use PyQt4 @v1 | |
12 |
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12 | |||
13 | Next, ask QT_API env variable |
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13 | Next, ask QT_API env variable | |
14 |
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14 | |||
15 | if QT_API not set: |
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15 | if QT_API not set: | |
16 | ask matplotlib what it's using. If Qt4Agg or Qt5Agg, then use the |
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16 | ask matplotlib what it's using. If Qt4Agg or Qt5Agg, then use the | |
17 | version matplotlib is configured with |
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17 | version matplotlib is configured with | |
18 |
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18 | |||
19 | else: (matplotlib said nothing) |
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19 | else: (matplotlib said nothing) | |
20 | # this is the default path - nobody told us anything |
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20 | # this is the default path - nobody told us anything | |
21 | try in this order: |
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21 | try in this order: | |
22 | PyQt default version, PySide, PyQt5 |
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22 | PyQt default version, PySide, PyQt5 | |
23 | else: |
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23 | else: | |
24 | use what QT_API says |
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24 | use what QT_API says | |
25 |
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25 | |||
26 | """ |
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26 | """ | |
27 | # NOTE: This is no longer an external, third-party module, and should be |
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27 | # NOTE: This is no longer an external, third-party module, and should be | |
28 | # considered part of IPython. For compatibility however, it is being kept in |
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28 | # considered part of IPython. For compatibility however, it is being kept in | |
29 | # IPython/external. |
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29 | # IPython/external. | |
30 |
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30 | |||
31 | import os |
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31 | import os | |
32 | import sys |
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32 | import sys | |
33 |
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33 | |||
34 | from IPython.utils.version import check_version |
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34 | from IPython.utils.version import check_version | |
35 | from IPython.external.qt_loaders import (load_qt, loaded_api, QT_API_PYSIDE, |
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35 | from IPython.external.qt_loaders import (load_qt, loaded_api, QT_API_PYSIDE, | |
36 | QT_API_PYQT, QT_API_PYQT5, |
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36 | QT_API_PYQT, QT_API_PYQT5, | |
37 | QT_API_PYQTv1, QT_API_PYQT_DEFAULT) |
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37 | QT_API_PYQTv1, QT_API_PYQT_DEFAULT) | |
38 |
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38 | |||
39 | _qt_apis = (QT_API_PYSIDE, QT_API_PYQT, QT_API_PYQT5, QT_API_PYQTv1, |
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39 | _qt_apis = (QT_API_PYSIDE, QT_API_PYQT, QT_API_PYQT5, QT_API_PYQTv1, | |
40 | QT_API_PYQT_DEFAULT) |
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40 | QT_API_PYQT_DEFAULT) | |
41 |
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41 | |||
42 | #Constraints placed on an imported matplotlib |
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42 | #Constraints placed on an imported matplotlib | |
43 | def matplotlib_options(mpl): |
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43 | def matplotlib_options(mpl): | |
44 | if mpl is None: |
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44 | if mpl is None: | |
45 | return |
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45 | return | |
46 | backend = mpl.rcParams.get('backend', None) |
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46 | backend = mpl.rcParams.get('backend', None) | |
47 | if backend == 'Qt4Agg': |
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47 | if backend == 'Qt4Agg': | |
48 | mpqt = mpl.rcParams.get('backend.qt4', None) |
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48 | mpqt = mpl.rcParams.get('backend.qt4', None) | |
49 | if mpqt is None: |
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49 | if mpqt is None: | |
50 | return None |
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50 | return None | |
51 | if mpqt.lower() == 'pyside': |
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51 | if mpqt.lower() == 'pyside': | |
52 | return [QT_API_PYSIDE] |
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52 | return [QT_API_PYSIDE] | |
53 | elif mpqt.lower() == 'pyqt4': |
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53 | elif mpqt.lower() == 'pyqt4': | |
54 | return [QT_API_PYQT_DEFAULT] |
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54 | return [QT_API_PYQT_DEFAULT] | |
55 | elif mpqt.lower() == 'pyqtv2': |
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55 | elif mpqt.lower() == 'pyqt4v2': | |
56 | return [QT_API_PYQT] |
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56 | return [QT_API_PYQT] | |
57 | raise ImportError("unhandled value for backend.qt4 from matplotlib: %r" % |
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57 | raise ImportError("unhandled value for backend.qt4 from matplotlib: %r" % | |
58 | mpqt) |
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58 | mpqt) | |
59 | elif backend == 'Qt5Agg': |
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59 | elif backend == 'Qt5Agg': | |
60 | mpqt = mpl.rcParams.get('backend.qt5', None) |
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60 | mpqt = mpl.rcParams.get('backend.qt5', None) | |
61 | if mpqt is None: |
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61 | if mpqt is None: | |
62 | return None |
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62 | return None | |
63 | if mpqt.lower() == 'pyqt5': |
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63 | if mpqt.lower() == 'pyqt5': | |
64 | return [QT_API_PYQT5] |
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64 | return [QT_API_PYQT5] | |
65 | raise ImportError("unhandled value for backend.qt5 from matplotlib: %r" % |
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65 | raise ImportError("unhandled value for backend.qt5 from matplotlib: %r" % | |
66 | mpqt) |
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66 | mpqt) | |
67 |
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67 | |||
68 | def get_options(): |
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68 | def get_options(): | |
69 | """Return a list of acceptable QT APIs, in decreasing order of |
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69 | """Return a list of acceptable QT APIs, in decreasing order of | |
70 | preference |
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70 | preference | |
71 | """ |
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71 | """ | |
72 | #already imported Qt somewhere. Use that |
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72 | #already imported Qt somewhere. Use that | |
73 | loaded = loaded_api() |
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73 | loaded = loaded_api() | |
74 | if loaded is not None: |
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74 | if loaded is not None: | |
75 | return [loaded] |
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75 | return [loaded] | |
76 |
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76 | |||
77 | mpl = sys.modules.get('matplotlib', None) |
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77 | mpl = sys.modules.get('matplotlib', None) | |
78 |
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78 | |||
79 | if mpl is not None and not check_version(mpl.__version__, '1.0.2'): |
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79 | if mpl is not None and not check_version(mpl.__version__, '1.0.2'): | |
80 | #1.0.1 only supports PyQt4 v1 |
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80 | #1.0.1 only supports PyQt4 v1 | |
81 | return [QT_API_PYQT_DEFAULT] |
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81 | return [QT_API_PYQT_DEFAULT] | |
82 |
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82 | |||
83 | qt_api = os.environ.get('QT_API', None) |
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83 | qt_api = os.environ.get('QT_API', None) | |
84 | if qt_api is None: |
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84 | if qt_api is None: | |
85 | #no ETS variable. Ask mpl, then use default fallback path |
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85 | #no ETS variable. Ask mpl, then use default fallback path | |
86 | return matplotlib_options(mpl) or [QT_API_PYQT_DEFAULT, QT_API_PYSIDE, QT_API_PYQT5] |
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86 | return matplotlib_options(mpl) or [QT_API_PYQT_DEFAULT, QT_API_PYSIDE, QT_API_PYQT5] | |
87 | elif qt_api not in _qt_apis: |
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87 | elif qt_api not in _qt_apis: | |
88 | raise RuntimeError("Invalid Qt API %r, valid values are: %r" % |
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88 | raise RuntimeError("Invalid Qt API %r, valid values are: %r" % | |
89 | (qt_api, ', '.join(_qt_apis))) |
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89 | (qt_api, ', '.join(_qt_apis))) | |
90 | else: |
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90 | else: | |
91 | return [qt_api] |
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91 | return [qt_api] | |
92 |
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92 | |||
93 | api_opts = get_options() |
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93 | api_opts = get_options() | |
94 | QtCore, QtGui, QtSvg, QT_API = load_qt(api_opts) |
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94 | QtCore, QtGui, QtSvg, QT_API = load_qt(api_opts) |
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