eric6/CondaInterface/__init__.py

Wed, 30 Dec 2020 11:00:44 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Wed, 30 Dec 2020 11:00:44 +0100
branch
maintenance
changeset 7924
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parent 7780
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child 8217
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permissions
-rw-r--r--

Updated copyright for 2021.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2019 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Package implementing the various conda related modules.
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8 """
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9
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10 import json
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11
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12 from PyQt5.QtCore import QCoreApplication, QProcess
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13
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14 import Preferences
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15
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16 __CondaVersion = ()
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17 __CondaVersionStr = ""
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18 __CondaRootPrefix = ""
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19 __CondaUserConfig = ""
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20
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21 __initialized = False
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22
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23
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24 def __initializeCondaInterface():
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25 """
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26 Private module function to (re-)initialize the conda interface.
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27 """
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28 global __CondaVersionStr, __CondaVersion, __CondaRootPrefix
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29 global __CondaUserConfig, __initialized
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30
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31 if not __initialized:
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32 exe = Preferences.getConda("CondaExecutable")
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33 if not exe:
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34 exe = "conda"
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35
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36 proc = QProcess()
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37 proc.start(exe, ["info", "--json"])
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38 if not proc.waitForStarted(15000):
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39 __CondaVersionStr = QCoreApplication.translate(
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40 "CondaInterface",
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41 '<conda not found or not configured.>')
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42 else:
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43 proc.waitForFinished(15000)
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44 output = str(proc.readAllStandardOutput(),
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45 Preferences.getSystem("IOEncoding"),
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46 'replace').strip()
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47 try:
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48 jsonDict = json.loads(output)
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49 except Exception:
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50 __CondaVersionStr = QCoreApplication.translate(
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51 "CondaInterface",
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52 '<conda returned invalid data.>')
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53 return
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54
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55 if "error" in jsonDict:
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56 __CondaVersionStr = QCoreApplication.translate(
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57 "CondaInterface",
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58 '<conda returned an error: {0}.>').format(
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59 jsonDict["error"])
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60 else:
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61 __CondaVersionStr = jsonDict["conda_version"]
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62 __CondaVersion = tuple(
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63 int(i) for i in __CondaVersionStr.split(".")
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64 )
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65 __CondaRootPrefix = jsonDict["root_prefix"]
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66 if "user_rc_path" in jsonDict:
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67 __CondaUserConfig = jsonDict["user_rc_path"]
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68 elif "rc_path" in jsonDict:
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69 __CondaUserConfig = jsonDict["rc_path"]
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70
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71 __initialized = True
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72
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73
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74 def condaVersion():
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75 """
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76 Module function to get the conda version.
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77
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78 @return tuple containing the conda version
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79 @rtype tuple of (int, int, int)
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80 """
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81 __initializeCondaInterface()
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82 return __CondaVersion
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83
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84
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85 def condaVersionStr():
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86 """
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87 Module function to get the conda version as a string.
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88
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89 @return conda version as a string
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90 @rtype str
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91 """
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92 __initializeCondaInterface()
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93 return __CondaVersionStr
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94
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95
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96 def rootPrefix():
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97 """
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98 Module function to get the root prefix.
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99
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100 @return root prefix
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101 @rtype str
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102 """
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103 __initializeCondaInterface()
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104 return __CondaRootPrefix
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105
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106
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107 def userConfiguration():
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108 """
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109 Module function to get the path of the user configuration file.
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110
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111 @return path of the user configuration file
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112 @rtype str
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113 """
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114 __initializeCondaInterface()
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115 return __CondaUserConfig
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116
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117
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diff changeset
118 def isCondaAvailable():
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6724
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119 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6724
diff changeset
120 Module function to check the availability of conda.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6724
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121
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6724
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122 @return flag indicating conda availability
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6724
diff changeset
123 @rtype bool
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6724
diff changeset
124 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6724
diff changeset
125 __initializeCondaInterface()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6724
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126 return bool(__CondaVersion)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6724
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127
6741
33a82a20dd3a Fixed some code style issues.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6738
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128
6697
2f5c951bdf14 Conda interface: added capability to remove conda environments the conda way.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6681
diff changeset
129 def resetInterface():
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6681
diff changeset
130 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6681
diff changeset
131 Module function to reset the conda interface.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6681
diff changeset
132 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6681
diff changeset
133 global __initialized
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6681
diff changeset
134
2f5c951bdf14 Conda interface: added capability to remove conda environments the conda way.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 6681
diff changeset
135 __initialized = False

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