Merge pull request #1374 from mathics/system-info

Easy access to system information

Author: rocky

mathics/settings.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 

mathics/system_info.py

@@ -0,0 +1,45 @@
+# -*- coding: utf-8 -*-
+
+import os
+import sys
+import platform
+import mathics.builtin.system as msystem
+import mathics.builtin.datentime as datentime
+import mathics.builtin.files_io.filesystem as filesystem
+import mathics.builtin.numeric as numeric
+
+from mathics.core.definitions import Definitions
+from mathics.core.evaluation import Evaluation
+
+def mathics_system_info(defs):
+    def eval(name, needs_head=True):
+        evaled = name().evaluate(evaluation)
+        if needs_head:
+            return evaled.head.to_python(string_quotes=False)
+        else:
+            return evaled.to_python(string_quotes=False)
+
+    evaluation = Evaluation(defs, output=None)
+    return {
+        "$Machine": sys.platform,
+        "$MachineName": platform.uname().node,
+        "$ProcessID": os.getppid(),
+        "$ProcessorType": platform.machine(),
+        "$SystemID": sys.platform,
+        "$UserName": eval(msystem.UserName),
+        "$SystemMemory": eval(msystem.SystemMemory),
+        "MemoryAvailable[]": eval(msystem.MemoryAvailable, needs_head=False),
+        "$SystemTimeZone": eval(datentime.SystemTimeZone),
+        "MachinePrecision": eval(numeric.MachinePrecision_),
+        "$BaseDirectory": eval(filesystem.BaseDirectory),
+        "$RootDirectory": eval(filesystem.RootDirectory),
+        "$HomeDirectory": eval(filesystem.HomeDirectory),
+        "$InstallationDirectory": eval(filesystem.InstallationDirectory),
+        "$TemporaryDirectory": eval(filesystem.TemporaryDirectory),
+
+        # ----
+        # Django specific:
+        # - - -
+        # MATHIC_DJANGO_DB_PATH
+        # DOC_XML_DATA
+}

test/test_system_info.py

@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+from .helper import session
+
+from mathics.system_info import mathics_system_info
+
+
+def test_system_info():
+    info = mathics_system_info(session.definitions)
+
+    from pprint import pprint
+
+    pprint(info)
+
+    expected_keys = set(
+        [
+            "$BaseDirectory",
+            "$HomeDirectory",
+            "$InstallationDirectory",
+            "$Machine",
+            "$MachineName",
+            "$ProcessID",
+            "$ProcessorType",
+            "$RootDirectory",
+            "$SystemID",
+            "$SystemMemory",
+            "$SystemTimeZone",
+            "$TemporaryDirectory",
+            "$UserName",
+            "MachinePrecision",
+            "MemoryAvailable[]",
+        ]
+    )
+    assert set(info.keys()) == expected_keys

test/test_to_python.py

@@ -1,13 +1,5 @@
 # -*- coding: utf-8 -*-
-from .helper import session, check_evaluation
-
-import math
-import sympy
-import sys
-from mathics.core.definitions import Definitions
-from mathics.core.evaluation import Evaluation
-import pytest
-
+from .helper import check_evaluation
 
 def test_to_infinity():
     for str_expr, str_expected, message in (