Updated docs and issue template to Python 3 syntax as Python 2 has be…

…en dropped

docs/docs/classic.rst

@@ -27,7 +27,7 @@ to it like so ::
 
     proc = conn.modules.subprocess.Popen("ls", stdout = -1, stderr = -1)
     stdout, stderr = proc.communicate()
-    print stdout.split()
+    print(stdout.split())
 
     remote_list = conn.builtin.range(7)
 

docs/docs/services.rst

@@ -24,7 +24,7 @@ Let's have a look at a rather basic service -- a calculator
         def exposed_div(self, a, b):
             return a / b
         def foo(self):
-            print "foo"
+            print("foo")
 
 When a client connects, it can access any of the exposed members of the service ::
 

docs/docs/zerodeploy.rst

@@ -45,11 +45,11 @@ it requires only two lines of code::
 
     # and now you can connect to it the usual way
     conn1 = server.classic_connect()
-    print conn1.modules.sys.platform
+    print(conn1.modules.sys.platform)
 
     # you're not limited to a single connection, of course
     conn2 = server.classic_connect()
-    print conn2.modules.os.getpid()
+    print(conn2.modules.os.getpid())
 
     # when you're done - close the server and everything will disappear
     server.close()

docs/issue_template.md

@@ -41,7 +41,6 @@ if __name__ == "__main__":
 Client:
 
 ```python
-from __future__ import print_function
 import rpyc
 
 

docs/tutorial/tut4.rst

@@ -22,23 +22,23 @@ Here's an example ::
 
     >>> import rpyc
     >>> c = rpyc.classic.connect("localhost")
-    >>> rlist = c.modules.__builtin__.range(10) # this is a remote list
+    >>> rlist = c.modules.builtins.list((0,1,2,3,4,5,6,7,8,9))  # this is a remote list
     >>> rlist
     [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
     >>>
     >>> def f(x):
     ...     return x**3
     ...
-    >>> c.modules.__builtin__.map(f, rlist)  # calling the remote map with the local function f as an argument
+    >>> list(c.modules.builtins.map(f, rlist))  # calling the remote map with the local function f as an argument
     [0, 1, 8, 27, 64, 125, 216, 343, 512, 729]
     >>>
 
     # and to better understand the previous example
     >>> def g(x):
-    ...     print "hi, this is g, executing locally", x
+    ...     print("hi, this is g, executing locally", x)
     ...     return x**3
     ...
-    >>> c.modules.__builtin__.map(g, rlist)
+    >>> list(c.modules.builtins.map(g, rlist))
     hi, this is g, executing locally 0
     hi, this is g, executing locally 1
     hi, this is g, executing locally 2