Archive for November, 2009

Filed Under (Editors, Python) by Marcin Kuźmiński on November-20-2009

Few days ago there was again a major update on pydev eclipse plugin.
The version 1.5.1. Comes with new refactoring engine PEPTIC, it’s way better than any one before.
Complete list below: visit http://pydev.org for download.

Release 1.5.1

  • Improvements in the AST rewriter
  • Improvements on the refactoring engine:
    • No longer using BRM
    • Merged with the latest PEPTIC
    • Inline local available
    • Extract method bug-fixes
    • Extract local on multi-line
    • Generating properties using coding style defined in preferences
    • Add after current method option added to extract method
    • A bunch of other corner-case situations were fixed
  • Bug-fixes:
    • Minor editor improvements
    • Adding default forced builtins on all platforms (e.g.: time, math, etc) which wouldn’t be on sys.builtin_module_names on some python installations
    • Adding ‘numpy’ and ‘Image’ to the forced builtins always
    • Ctrl+1: Generate docstring minor fixes
    • Ctrl+1: Assign to local now follows coding style preferences properly
    • Exponential with uppercase E working on code-formatting
    • When a set/get method is found in code-completion for a java class an NPE is no longer thrown
    • Backspace properly treated in block mode
    • Setting IRONPYTHONPATH when dealing with Iron Python (projects could not be referenced)
    • No longer giving spurious ’statement has no effect’ inside of lambda and decorators
    • Fixed new exec in python 3k
    • Fixed NPE when breakpoint is related to a resource in a removed project
    • Fixed import problem on regexp that could lead to a recursion.
    • No longer giving NPE when debugging with the register view open
    • List access be treated as __getitem__() in the list — patch from Tassilo Barth
    • Fix for invalid auto-self added when typing


Filed Under (Editors, Python) by Marcin Kuźmiński on November-15-2009

I installed new eclipse on ubuntu 9.10, and noticed that manu of FINISH,
NEXT buttons are not working correctly ( you can’t click them).

So it found out it’s eclipse bug, but fortunately there is a simple
solution to this problem.

Write a startup script:

#!/bin/sh
export GDK_NATIVE_WINDOWS=1
/path_to_eclipse/eclipse

Save it as eclipse-run.sh make it +x, and the buttons will work now if you
run your eclipse via the run script.



Filed Under (Mercurial, Nginx) by Marcin Kuźmiński on November-15-2009

Today is a great day ;) i switched my repos from svn to mercurial.
I was still thinking about GIT but there where three key points that made me choose mercurial

Cons: it’s slower than GIT ( but who cares :D )

So after installing mercurial and moving my svn repos with history with hgsvn ( which can also do push to svn )
I started to setup easy access to the repository using nginx. I’ll show you how to setup an SSL http based repository to do PUSH/PULL/CLONE what ever.

Firstly we have to make self signed ssl certificates.
I found on of the easiest tutorials available you can find it here: http://www.akadia.com/services/ssh_test_certificate.html

OK when we have the ssl certificates for our server. Put it somewhere on the server so nginx can access it.
We have to setup a new virtual host for nginx that will only do ssl connections
and have basic auth additionally.

Here’s the example config:

server {
    listen          443;
    server_name     hg.yourserver.com;
    ssl    on;
    ssl_certificate    /home/ssl_certs/hg_cert.crt;
    ssl_certificate_key     /home/ssl_certs/hg_cert.key;
    access_log      /var/log/nginx/hg.log;
    auth_basic      "mercurial server";
    auth_basic_user_file    /etc/nginx/.htpasswd;

    location / {
        proxy_pass      http://127.0.0.1:8001;
        #here's where the hg server runs
        include         /etc/nginx/proxy.conf;
    }
}

Few thing to notice.
.htpasswd file has to be in a format <username>:<cryptPassword> if you don’t have apache
installed you can use my password generator for generating crypt password. This username
and password will be used to do pull/push from console and eclipse.
Another important thing is that when you run hg serve you must specify the -a 127.0.0.1 option which is
for the address the mercurial server runs. Hg serve default is to start at all interfaces
so you have this port open outside and your ssl/passwd protection is for nothing…

I run my using hg serve –webdir-conf=/etc/hg/hgweb.conf -d -p 8001 -a 127.0.0.1

The hgweb.conf should be with

push_ssl = false
#since nginx is doing the SSL
allow_push = * #NGINX  is doing the auth
style = gitweb

O and one more thing remember that your repo should be accessible to hg serv.
I made a mistake and run hg serve as www-data and my repo was to my home user,
and i had internal server error when trying to do push to server.

So now you can have your repo via http with SSL and nginx authentication.



Filed Under (Python) by Łukasz Balcerzak on November-9-2009

During the weekend I’ve created Djalog project hosted at the http://code.google.com/p/djalog/. It is simplest possible logging app aimed to work within Django context (or for prototyping as it is also logging-ready out of the box after import in any scripts).

I’ve also put it on the PyPi (http://pypi.python.org/pypi/Djalog) so in order to install it you would execute:

easy_install Djalog

and you are ready. If you want to quickly check how it works just type:

import djalog
import logging

logging.debug("Log some debug information.")
logging.info("Log some information.")
logging.warn("Log some warning.")
logging.error("Log some error.")
logging.critical("Log some critical information.")

from djalog import configure
configure(LOG_USE_COLORS=True, LOG_SQL=True, LOG_LEVEL=5)

logging.debug("Log some debug information.")
logging.info("Log some information.")
logging.warn("Log some warning.")
logging.error("Log some error.")
logging.critical("Log some critical information.")

# Log sql query
logging.sql("SELECT * FROM users WHERE username = 'admin'")

This is beta but it should be changed to “final” in two weeks. Remember that you may update projects from CheeseShop using “-U” option:

easy_install -U Djalog

Enjoy!