Change how init works

capnp/capnp.pyx

@@ -276,12 +276,6 @@ cdef class _DynamicStructBuilder:
         return self
 
     def __getattr__(self, field):
-        if field.startswith('init'):
-            field_name = field[4].lower() + field[5:]
-            try:
-                self._has(field_name) # We don't need to test bool value here, since it will throw an exception if the field is non-existant
-                return lambda size: self.init(field_name, size)
-            except ValueError: pass
         return toPython(self.thisptr.get(field))
 
     cdef _setattrInt(self, field, value):

examples/example.py

@@ -5,17 +5,16 @@ import capnp
 this_dir = os.path.dirname(__file__)
 addressbook = capnp.load(os.path.join(this_dir, 'addressbook.capnp'))
 
-
 def writeAddressBook(fd):
     message = capnp.MallocMessageBuilder()
     addressBook = message.initRoot(addressbook.AddressBook)
-    people = addressBook.initPeople(2)
+    people = addressBook.init('people', 2)
 
     alice = people[0]
     alice.id = 123
     alice.name = 'Alice'
     alice.email = 'alice@example.com'
-    alicePhones = alice.initPhones(1)
+    alicePhones = alice.init('phones', 1)
     alicePhones[0].number = "555-1212"
     alicePhones[0].type = 'mobile'
     alice.employment.school = "MIT"
@@ -24,7 +23,7 @@ def writeAddressBook(fd):
     bob.id = 456
     bob.name = 'Bob'
     bob.email = 'bob@example.com'
-    bobPhones = bob.initPhones(2)
+    bobPhones = bob.init('phones', 2)
     bobPhones[0].number = "555-4567"
     bobPhones[0].type = 'home'
     bobPhones[1].number = "555-7654"
@@ -33,9 +32,6 @@ def writeAddressBook(fd):
 
     capnp.writePackedMessageToFd(fd, message)
 
-f = open('example', 'w')
-writeAddressBook(f.fileno())
-
 
 def printAddressBook(fd):
     message = capnp.PackedFdMessageReader(f.fileno())
@@ -59,5 +55,10 @@ def printAddressBook(fd):
             print('self employed')
         print()
 
+
+if __name__ == '__main__':
+    f = open('example', 'w')
+    writeAddressBook(f.fileno())
+
     f = open('example', 'r')
     printAddressBook(f.fileno())