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Kirill Smelkov
Zope
Commits
e26a4e5d
Commit
e26a4e5d
authored
Oct 09, 2010
by
Hanno Schlichting
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Update trunk version to 2.14
parent
cb0e2c23
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doc/CHANGES.rst
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doc/WHATSNEW.rst
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e26a4e5d
What
's new in Zope 2.1
3
What's new in Zope 2.1
4
=======================
The article explains the new high-level features and changes found in this
...
...
@@ -8,151 +8,7 @@ You can have a look at the `detailed change log <CHANGES.html>`_ to learn
about all minor new features and bugs being solved in this release.
Python 2.7
----------
This release of Zope 2 adds support for
`Python 2.7 <http://www.python.org/download/releases/2.7/>`_. Please refer to
the `What'
s
new
in
Python
2.7
<
http
://
docs
.
python
.
org
/
dev
/
whatsnew
/
2.7
.
html
>`
_
document
,
if
you
want
to
know
more
about
the
changes
.
Zope
2.13
is
continuing
to
support
Python
2.6.4
or
any
later
maintenance
release
of
it
.
There
's currently no support for any Python 3.x version. Work has begun
in the Zope Toolkit to port some of the lower level packages to Python 3.
ZODB 3.10
---------
This version of Zope includes ZODB 3.10 - a new major version of the ZODB.
Among the notable changes are a variety of performance improvements. The ZEO
server process is now multi-threaded. If the underlying file system and disk
storage can handle concurrent disk I/O efficiently a throughput increase by a
factor of up to four has been seen. On a related note using solid state disks
for the ZEO server has a similar effect and can increase throughput by the
same factor. Both of these effects combined can lead to an increase of up to
sixteen times the throughput in high load scenarios.
File storage indexes use a new format, which is both smaller in size and can
be read much faster. The repozo backup script now also backs up the index files
in addition to the actual data, so in a restore scenario the index doesn'
t
have
to
be
recreated
.
For
large
databases
this
can
bring
down
the
total
downtime
in
a
restore
scenario
by
a
significant
amount
of
time
.
The
ZODB
has
added
support
for
wrapper
storages
that
transform
pickle
data
.
Applications
for
this
include
compression
and
encryption
.
A
storage
using
standard
zlib
compression
is
available
as
a
new
package
called
`
zc
.
zlibstorage
<
http
://
pypi
.
python
.
org
/
pypi
/
zc
.
zlibstorage
>`
_
.
In
content
management
scenarios
where
strings
constitute
the
most
of
the
non
-
blob
data
,
this
can
reduce
the
Data
.
fs
size
by
a
factor
of
two
or
more
.
The
overhead
of
compressing
and
uncompressing
is
negligible
.
This
saves
both
network
I
/
O
and
disk
space
.
More
importantly
the
database
has
better
chances
of
fitting
into
the
operating
systems
disk
cache
and
thus
into
memory
.
The
second
advantage
is
less
important
when
using
solid
state
disks
.
Databases
now
warn
when
committing
very
large
records
(>
16
MB
).
This
is
to
try
to
warn
people
of
likely
design
mistakes
.
There
is
a
new
option
(
large_record_size
/
large
-
record
-
size
)
to
control
the
record
size
at
which
the
warning
is
issued
.
This
should
help
developers
to
better
understand
the
storage
implications
of
their
code
,
which
has
been
rather
transparent
so
far
.
The
mkzeoinst
script
has
been
moved
to
a
separate
project
`
zope
.
mkzeoinstance
<
http
://
pypi
.
python
.
org
/
pypi
/
zope
.
mkzeoinstance
>`
_
and
is
no
-
longer
included
with
ZODB
.
You
will
need
to
use
this
new
package
to
set
up
ZEO
servers
or
use
the
`
plone
.
recipe
.
zeoserver
<
http
://
pypi
.
python
.
org
/
pypi
/
plone
.
recipe
.
zeoserver
>`
_
recipe
if
you
use
`
buildout
<
http
://
www
.
buildout
.
org
/>`
_
.
More
information
can
be
found
in
the
detailed
`
change
log
<
http
://
pypi
.
python
.
org
/
pypi
/
ZODB3
/
3.10.0
b8
>`
_
.
WSGI
----
This
Zope
release
comes
with
native
WSGI
support
.
First
pioneered
in
the
repoze
.
zope2
project
,
this
capability
finally
found
its
way
back
into
the
core
and
obsoletes
the
externally
managed
project
.
With
WSGI
Zope
2
can
natively
talk
to
a
variety
of
web
servers
and
isn
't restricted to its own ZServer anymore. It
also opens up new possibilities for writing or reusing middleware in Zope 2 or
factoring out capabilities into WSGI endware. It'
s
expected
that
this
new
deployment
model
will
over
time
become
the
default
and
the
old
ZServer
implementation
will
be
deprecated
.
There
's no concrete timeline for this yet.
NOTE: There'
s
no
setup
documentation
nor
streamlined
instance
creation
logic
for
a
WSGI
setup
yet
.
You
are
expected
to
know
exactly
what
you
are
doing
if
you
are
trying
to
use
this
feature
.
Zope
Toolkit
------------
Zope
2.13
has
neither
direct
nor
indirect
``
zope
.
app
.*``
dependencies
anymore
.
This
finishes
the
transition
from
the
hybrid
Zope
2
+
3
codebase
.
Zope
3
itself
has
been
split
up
into
two
projects
,
the
underlying
Zope
Toolkit
consisting
of
foundation
libraries
and
the
application
server
part
.
The
application
server
part
has
been
renamed
BlueBream
.
Zope
2
only
depends
and
ships
with
the
Zope
Toolkit
now
.
Large
parts
of
code
inside
Zope
2
and
specifically
Products
.
Five
have
been
refactored
to
match
this
new
reality
.
The
goal
is
to
finally
remove
the
Five
integration
layer
and
make
the
Zope
Toolkit
a
normal
integral
part
of
Zope
2.
ZCatalog
--------
The
ZCatalog
and
the
default
set
of
indexes
as
found
in
the
PluginIndexes
package
have
seen
a
large
number
of
changes
.
Most
of
these
have
been
pioneered
in
add
-
on
packages
in
the
Zope
community
over
the
last
years
and
now
have
found
their
way
back
into
the
core
.
The
largest
change
is
added
query
plan
support
for
the
catalog
.
A
standard
feature
in
all
relation
databases
,
the
job
of
a
query
plan
is
to
monitor
queries
in
a
live
system
and
based
on
execution
metrics
devise
optimized
plans
for
executing
the
low
level
instructions
which
lead
to
a
query
result
.
In
sites
with
large
number
of
indexed
objects
this
can
make
a
tremendous
difference
and
significantly
speed
up
all
queries
.
The
query
plan
support
is
completely
transparent
to
all
users
,
though
ways
exist
for
developers
to
predefine
it
and
store
it
across
server
restarts
.
The
plan
itself
can
be
introspected
in
a
tab
in
the
ZMI
.
There
's also a new ZMI tab to
report slow catalog queries which can help developers to tune the remaining slow
queries in their applications.
In addition to these larger changes there'
s
been
a
high
number
of
smaller
changes
to
the
search
logic
and
the
catalog
implementations
.
All
of
these
should
result
in
better
query
execution
and
reduced
number
of
conflict
error
potential
.
Refactoring
Major topic
-----------
There
's an ongoing effort to refactor Zope 2 into more independent modularized
distributions. Zope 2.12 has already seen a lot of this, with the use of zope.*
packages as individual distributions and the extraction of packages like
Acquisition, DateTime or tempstorage to name a few. Zope 2.13 continues this
trend and has moved all packages containing C extensions to external
distributions. Among those are AccessControl, DocumentTemplate and
Products.ZCTextIndex.
Optional Formlib support
------------------------
Zope 2 made a number of frameworks available through its integration layer
Products.Five. Among these has been direct support for an automated form
generation framework called zope.formlib with its accompanying widget library
zope.app.form.
This form generation framework has seen only minor adoption throughout the Zope
community and more popular alternatives like z3c.form exist. To reflect this
status Zope 2 no longer directly contains formlib support.
If you rely on formlib, you need to add a dependency to the new five.formlib
distribution and change all related imports pointing to Products.Five.form or
Products.Five.formlib to point to the new package instead.
In order to ease the transition, five.formlib has been backported to the 2.12
release series. Starting in 2.12.3 you can already use the new five.formlib
package, but backwards compatibility imports are left in place in Products.Five.
This allows you to easily adapt your packages to work with both 2.12 and 2.13.
TODO
doc/conf.py
View file @
e26a4e5d
...
...
@@ -49,9 +49,9 @@ copyright = u'2009-2010, The Zope Developers Community'
# built documents.
#
# The short X.Y version.
version
=
'2.1
3
'
version
=
'2.1
4
'
# The full version, including alpha/beta/rc tags.
release
=
'2.1
3
'
release
=
'2.1
4
'
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
...
...
doc/index.rst
View file @
e26a4e5d
Zope 2.1
3
specific documentation
Zope 2.1
4
specific documentation
================================
Contents:
...
...
setup.py
View file @
e26a4e5d
...
...
@@ -23,7 +23,7 @@ if sys.platform[:3].lower() == "win":
setup
(
name
=
'Zope2'
,
version
=
'2.1
3.0c
1.dev'
,
version
=
'2.1
4.0a
1.dev'
,
url
=
'http://zope2.zope.org'
,
license
=
'ZPL 2.1'
,
description
=
'Zope2 application server / web framework'
,
...
...
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