rework timezone example. closes irmen#27

Author: irmen

Pyro5/__init__.py

@@ -4,7 +4,7 @@
 Pyro - Python Remote Objects.  Copyright by Irmen de Jong ([email protected]).
 """
 
-__version__ = "5.10"
+__version__ = "5.11"
 __author__ = "Irmen de Jong"
 
 

docs/source/changelog.rst

@@ -2,6 +2,14 @@
 Change Log
 **********
 
+**Pyro 5.11**
+
+- reworked the timezones example. (it didn't work as intended)
+- httpgateway message data bytearray type fix
+- fixed ipv6 error in filetransfer example
+
+
+
 **Pyro 5.10**
 
 - finally ported over the unit test suite from Pyro4

examples/timezones/Readme.txt

@@ -1,10 +1,7 @@
-This example exercises the support for pytz/dateutil timezones in the serializers.
-You'll see that this is quite problematic as the tz info is not really a standard
-extension, or some serializers may fail to serialize a datetime object at all.
-
-The only solution is to convert back to a datetime without tz info (so perhaps
-normalize them all to UTC) before transferring, or avoiding datetime objects entirely...
-
-
 PREREQUISITES:
 install the 'pytz', 'python-dateutil' and 'pendulum' libraries
+
+This example shows how datetime and timezones could be handled.
+The default serpent serializer will serialize them as a string in ISO date/time format.
+You will have to either parse the string yourself,
+or perhaps use a custom serializer/deserializer (not shown in this example).

examples/timezones/client.py

@@ -1,105 +1,35 @@
+import pendulum
 import datetime
-import traceback
-from Pyro5.api import Proxy, config
+from Pyro5.api import Proxy
 
 
 uri = input("What is the server uri? ").strip()
 fmt = '%Y-%m-%d %H:%M:%S %Z%z'
 print("local time without timezone: ", datetime.datetime.now().strftime(fmt))
 
 
-def test():
-    with Proxy(uri) as serv:
-        print("\nFIRST: no timezone")
-        try:
-            date1 = serv.echo(datetime.datetime.now())
-            print("Got from server:", date1)
-            print("{0}\n  {1} ({2})".format(date1, repr(date1), type(date1)))
-            if isinstance(date1, datetime.datetime):
-                if hasattr(date1, "tzinfo"):
-                    print("    tzinfo =", date1.tzinfo)
-                else:
-                    print("    no tzinfo attribute")
-        except Exception:
-            print("ERROR!")
-            traceback.print_exc()
-
-        print("\nSECOND: PyTz timezones")
-        try:
-            date1 = serv.pytz()
-            print("Got from server:", date1)
-            if isinstance(date1, datetime.datetime):
-                assert isinstance(date1.tzinfo, datetime.tzinfo)
-                print("{0}\n  {1} ({2})\n    {3}".format(date1, date1.tzinfo, type(date1.tzinfo), date1.strftime(fmt)))
-                date2 = serv.echo(date1)
-                print("{0}\n  {1} ({2})\n    {3}".format(date2, date2.tzinfo, type(date2.tzinfo), date2.strftime(fmt)))
-                assert date1 == date2
-        except Exception:
-            print("ERROR!")
-            traceback.print_exc()
-
-        print("\nTHIRD: DateUtil timezones")
-        try:
-            date1 = serv.dateutil()
-            print("Got from server:", date1)
-            if isinstance(date1, datetime.datetime):
-                assert isinstance(date1.tzinfo, datetime.tzinfo)
-                print("{0}\n  {1} ({2})\n    {3}".format(date1, date1.tzinfo, type(date1.tzinfo), date1.strftime(fmt)))
-                date2 = serv.echo(date1)
-                print("{0}\n  {1} ({2})\n    {3}".format(date2, date2.tzinfo, type(date2.tzinfo), date2.strftime(fmt)))
-                assert date1 == date2
-        except Exception:
-            print("ERROR!")
-            traceback.print_exc()
-
-        print("\nFOURTH: Pendulum timezones")
-        try:
-            date1 = serv.pendulum()
-            print("Got from server:", date1)
-            if isinstance(date1, datetime.datetime):
-                assert isinstance(date1.tzinfo, datetime.tzinfo)
-                print("{0}\n  {1} ({2})\n    {3}".format(date1, date1.tzinfo, type(date1.tzinfo), date1.strftime(fmt)))
-                date2 = serv.echo(date1)
-                print("{0}\n  {1} ({2})\n    {3}".format(date2, date2.tzinfo, type(date2.tzinfo), date2.strftime(fmt)))
-                assert date1 == date2
-        except Exception:
-            print("ERROR!")
-            traceback.print_exc()
-
-
-# serpent.
-print("\n******* serpent *******")
-config.SERIALIZER = "serpent"
-try:
-    test()
-except Exception:
-    import traceback
-    traceback.print_exc()
-
-# json.
-print("\n******* json *******")
-config.SERIALIZER = "json"
-try:
-    test()
-except Exception:
-    import traceback
-    traceback.print_exc()
-
-# msgpack.
-print("\n******* msgpack *******")
-config.SERIALIZER = "msgpack"
-try:
-    test()
-except Exception:
-    import traceback
-    traceback.print_exc()
-
-# marshal.
-print("\n******* marshal *******")
-config.SERIALIZER = "marshal"
-try:
-    test()
-except Exception:
-    import traceback
-    traceback.print_exc()
-
+with Proxy(uri) as serv:
+    print("\n1. no timezone")
+    datestr = serv.echo(datetime.datetime.now())
+    print("Got from server:", repr(datestr))
+    dt = pendulum.parse(datestr)
+    print("   parsed:", repr(dt))
+
+    print("\n2. PyTz timezones")
+    datestr = serv.pytz()
+    print("Got from server:", repr(datestr))
+    dt = pendulum.parse(datestr)
+    print("   parsed:", repr(dt))
+
+    print("\n3. DateUtil timezones")
+    datestr = serv.dateutil()
+    print("Got from server:", repr(datestr))
+    dt = pendulum.parse(datestr)
+    print("   parsed:", repr(dt))
+
+    print("\n4. Pendulum timezones")
+    datestr = serv.pendulum()
+    print("Got from server:", repr(datestr))
+    dt = pendulum.parse(datestr)
+    print("   parsed:", repr(dt))
+    print()

examples/timezones/server.py

@@ -11,22 +11,24 @@
 @expose
 class Server(object):
     def echo(self, date):
-        print("ECHO:")
-        print(" [raw] ", repr(date))
-        if hasattr(date, "isoformat"):
-            print(" [iso] ", date.isoformat())
+        print("RETURNING:", repr(date))
         return date
 
     def pytz(self):
         tz_nl = pytz.timezone("Europe/Amsterdam")
-        return tz_nl.localize(datetime.datetime.now())
+        result = tz_nl.localize(datetime.datetime.now())
+        print("RETURNING:", repr(result))
+        return result
 
     def dateutil(self):
         tz_nl = dateutil.tz.gettz("Europe/Amsterdam")
-        return datetime.datetime.now(tz_nl)
+        result = datetime.datetime.now(tz_nl)
+        print("RETURNING:", repr(result))
+        return result
 
     def pendulum(self):
         tz_nl = pendulum.now("Europe/Amsterdam")
+        print("RETURNING:", repr(tz_nl))
         return tz_nl