Admitting my flaws and turning them into virtues! This is a full length talk given it at DjangoCon US 2011, PyCon Australia 2011, and LA Django. The earliest version was a lightning talk given at the ...
Admitting my flaws and turning them into virtues! This is a full length talk given it at DjangoCon US 2011, PyCon Australia 2011, and LA Django. The earliest version was a lightning talk given at the 2011 Hollywood hackathon.
Confessions of Joe DeveloperPresentation Transcript
Confessions ofJoe Developer Daniel Greenfeld
Daniel Greenfeld @pydanny Who am I? Daniel Greenfeld (@pydanny) Pythonista at Cartwheel Djangonaut at Revsys Co-lead of djangopackages.com & Packaginator (Open Comparison) Fiancé of Audrey Royhttp://www.flickr.com/photos/pydanny/4442245488
Why am I talking?
I’m stupid and lazy
I’m stupid
Daniel Greenfeld @pydannyI’m stupid
Daniel Greenfeld @pydanny I’m stupid• Can’t figure things out
Daniel Greenfeld @pydanny I’m stupid• Can’t figure things out• Can’t remember things
Daniel Greenfeld @pydanny I’m stupid• Can’t figure things out• Can’t remember things• Too stupid not to ask stupid questions
Daniel Greenfeld @pydanny I’m stupidCan’t figure things out
Daniel Greenfeld @pydanny I’m stupid Can’t figure things out• If I get stuck for more than 30 minutes...
Daniel Greenfeld @pydanny I’m stupid Can’t figure things out• If I get stuck for more than 30 minutes... • Find libraries that do it for me
Daniel Greenfeld @pydanny I’m stupid Can’t figure things out• If I get stuck for more than 30 minutes... • Find libraries that do it for me • Ask on Twitter for answers
Daniel Greenfeld @pydanny I’m stupid Can’t figure things out• If I get stuck for more than 30 minutes... • Find libraries that do it for me • Ask on Twitter for answers • Stack Overflow is also good, but watch for trolls.
Daniel Greenfeld @pydanny I’m stupid Can’t figure things out• If I get stuck for more than 30 minutes... • Find libraries that do it for me • Ask on Twitter for answers • Stack Overflow is also good, but watch for trolls. • IRC can be good, if you get a troll try a different channel.
Daniel Greenfeld @pydanny I’m stupidCan’t figure things out
Daniel Greenfeld @pydanny I’m stupid Can’t figure things out “Smart” people way# This sample gleefully taken from https://gist.github.com/973705import urllib2gh_url = https://api.github.comgh_user= usergh_pass = passreq = urllib2.Request(gh_url)password_manager = urllib2.HTTPPasswordMgrWithDefaultRealm()password_manager.add_password(None, gh_url, gh_user, gh_pass)auth_manager = urllib2.HTTPBasicAuthHandler(password_manager)opener = urllib2.build_opener(auth_manager)urllib2.install_opener(opener)handler = urllib2.urlopen(req)print handler.getcode()print handler.headers.getheader(content-type)# ------# 200# application/json
Daniel Greenfeld @pydanny I’m stupid Can’t figure things out “Smart” people way PyDanny way# This sample gleefully taken from https://gist.github.com/973705 # This sample joyfully taken fromimport urllib2 # https://gist.github.com/973705gh_url = https://api.github.comgh_user= usergh_pass = pass import requestsreq = urllib2.Request(gh_url) r = requests.get(https://api.github.com,password_manager = urllib2.HTTPPasswordMgrWithDefaultRealm() auth=(user, pass))password_manager.add_password(None, gh_url, gh_user, gh_pass)auth_manager = urllib2.HTTPBasicAuthHandler(password_manager) print r.status_codeopener = urllib2.build_opener(auth_manager) print r.headers[content-type]urllib2.install_opener(opener)handler = urllib2.urlopen(req) # ------ # 200print handler.getcode()print handler.headers.getheader(content-type) # application/json# ------# 200# application/json
Daniel Greenfeld @pydannyI’m stupid ‘Smart way’ aka hard way
Daniel Greenfeld @pydanny I’m stupid# This sample gleefully taken from# https://gist.github.com/973705 ‘Smart way’import urllib2 akagh_url = https://api.github.comgh_user= usergh_pass = pass hard wayreq = urllib2.Request(gh_url)password_manager = urllib2.HTTPPasswordMgrWithDefaultRealm()password_manager.add_password(None, gh_url, gh_user, gh_pass)auth_manager = urllib2.HTTPBasicAuthHandler(password_manager)opener = urllib2.build_opener(auth_manager)urllib2.install_opener(opener)handler = urllib2.urlopen(req)print handler.getcode()print handler.headers.getheader(content-type)# ------# 200# application/json
Daniel Greenfeld @pydanny I’m stupid # This sample gleefully taken from # https://gist.github.com/973705 ‘Smart way’ What import urllib2 akais this? gh_url = https://api.github.com gh_user= user gh_pass = pass hard way req = urllib2.Request(gh_url) password_manager = urllib2.HTTPPasswordMgrWithDefaultRealm() password_manager.add_password(None, gh_url, gh_user, gh_pass) auth_manager = urllib2.HTTPBasicAuthHandler(password_manager) opener = urllib2.build_opener(auth_manager) urllib2.install_opener(opener) handler = urllib2.urlopen(req) print handler.getcode() print handler.headers.getheader(content-type) # ------ # 200 # application/json
Daniel Greenfeld @pydanny I’m stupid # This sample gleefully taken from # https://gist.github.com/973705 ‘Smart way’ What import urllib2 akais this? gh_url = https://api.github.com gh_user= user gh_pass = pass hard way req = urllib2.Request(gh_url) password_manager = urllib2.HTTPPasswordMgrWithDefaultRealm() password_manager.add_password(None, gh_url, gh_user, gh_pass) auth_manager = urllib2.HTTPBasicAuthHandler(password_manager) opener = urllib2.build_opener(auth_manager) And urllib2.install_opener(opener) this? handler = urllib2.urlopen(req) print handler.getcode() print handler.headers.getheader(content-type) # ------ # 200 # application/json
Daniel Greenfeld @pydanny I’m stupid # This sample gleefully taken from # https://gist.github.com/973705 ‘Smart way’ What import urllib2 akais this? gh_url = https://api.github.com gh_user= user gh_pass = pass hard way req = urllib2.Request(gh_url) password_manager = urllib2.HTTPPasswordMgrWithDefaultRealm() password_manager.add_password(None, gh_url, gh_user, gh_pass) auth_manager = urllib2.HTTPBasicAuthHandler(password_manager) opener = urllib2.build_opener(auth_manager) And urllib2.install_opener(opener) What is an this? install opener? handler = urllib2.urlopen(req) print handler.getcode() print handler.headers.getheader(content-type) # ------ # 200 # application/json
Daniel Greenfeld @pydanny I’m stupid # This sample gleefully taken from # https://gist.github.com/973705 ‘Smart way’ What import urllib2 akais this? gh_url = https://api.github.com gh_user= user gh_pass = pass hard way req = urllib2.Request(gh_url) password_manager = urllib2.HTTPPasswordMgrWithDefaultRealm() password_manager.add_password(None, gh_url, gh_user, gh_pass) auth_manager = urllib2.HTTPBasicAuthHandler(password_manager) opener = urllib2.build_opener(auth_manager) And urllib2.install_opener(opener) What is an this? install opener? handler = urllib2.urlopen(req) print handler.getcode() print handler.headers.getheader(content-type) Finally we make # ------ the request! # 200 # application/json
Daniel Greenfeld @pydanny I’m stupid ‘Stupid way’ akaCan’t figure things out easy way
Daniel Greenfeld @pydanny I’m stupid ‘Stupid way’ aka Can’t figure things out easy way# This sample joyfully taken from# https://gist.github.com/973705import requestsr = requests.get(https://api.github.com, auth=(user, pass))print r.status_codeprint r.headers[content-type]# ------# 200# application/json
Daniel Greenfeld @pydanny I’m stupid ‘Stupid way’ akaHTTP Can’t figure things outGET easy way # This sample joyfully taken from # https://gist.github.com/973705 import requests r = requests.get(https://api.github.com, auth=(user, pass)) print r.status_code print r.headers[content-type] # ------ # 200 # application/json
Daniel Greenfeld @pydanny I’m stupid ‘Stupid way’ akaHTTP Can’t figure things outGET easy way # This sample joyfully taken from # https://gist.github.com/973705 import requests r = requests.get(https://api.github.com,Username auth=(user, pass)) + print r.status_codePassword print r.headers[content-type] # ------ # 200 # application/json
Daniel Greenfeld @pydanny I’m stupid Can’t figure things out “Smart” people way PyDanny way# This sample gleefully taken from https://gist.github.com/973705 # This sample joyfully taken fromimport urllib2 # https://gist.github.com/973705gh_url = https://api.github.comgh_user= usergh_pass = pass import requestsreq = urllib2.Request(gh_url) r = requests.get(https://api.github.com,password_manager = urllib2.HTTPPasswordMgrWithDefaultRealm() auth=(user, pass))password_manager.add_password(None, gh_url, gh_user, gh_pass)auth_manager = urllib2.HTTPBasicAuthHandler(password_manager) print r.status_codeopener = urllib2.build_opener(auth_manager) print r.headers[content-type]urllib2.install_opener(opener)handler = urllib2.urlopen(req) # ------ # 200print handler.getcode()print handler.headers.getheader(content-type) # application/json# ------# 200# application/json
Daniel Greenfeld @pydanny I’m stupidToo stupid not to ask stupid questions
Daniel Greenfeld @pydanny I’m stupidToo stupid not to ask stupid questions • There are no stupid questions
Daniel Greenfeld @pydanny I’m stupidToo stupid not to ask stupid questions • There are no stupid questions • Don’t try and impress the people around you by not asking questions.
Daniel Greenfeld @pydanny I’m stupidToo stupid not to ask stupid questions You are at DjangoCon. If you don’t ask the question, you are wasting opportunity.
Daniel Greenfeld @pydanny I’m stupidToo stupid not to ask stupid questions You are at DjangoCon. A positive trait good tech leads often look for is the ability to ask questions.
Daniel Greenfeld @pydanny I’m stupidCan’t remember things
Daniel Greenfeld @pydanny I’m stupid Can’t remember things• Documentation makes me look good
Daniel Greenfeld @pydanny I’m stupid Can’t remember things• Documentation makes me look good• Docstrings are awesome
Daniel Greenfeld @pydanny I’m stupid Can’t remember things• Documentation makes me look good• Docstrings are awesome• Learn you some Restructured Text
Daniel Greenfeld @pydanny I’m stupid Can’t remember things• Documentation makes me look good• Docstrings are awesome• Learn you some Restructured Text• Write down even the slide bullets!
Daniel Greenfeld @pydanny I’m stupid Can’t remember things• Documentation makes me look good• Docstrings are awesome• Learn you some Restructured Text• Write down even the slide bullets!• https://github.com/pydanny/pydanny-event-notes
Daniel Greenfeld Joe Developer @pydanny Resources Where the code examples live!https://github.com/pydanny/django-party-pack http://django-party-pack.rtfd.org/
Daniel Greenfeld @pydanny I’m stupidhttp://readthedocs.org/docs/django-party-pack
Daniel Greenfeld @pydanny I’m stupidSphinxmakes me lookgood! http://readthedocs.org/docs/django-party-pack
Daniel Greenfeld @pydanny Docs/Sphinx Basics• pip install sphinx• make a docs directory• sphinx-quickstart• Follow instructions• Starting over is just removing your docs
Daniel Greenfeld @pydanny I’m stupid Sphinx makes me look good! ============= Installation ============= .. note:: For things with **font like this** it means type it at the command line and hit enter. The Basics =========== 0. **git clone https://pydanny@github.com/pydanny/django-party-pack.git** 1. Make sure you have virtualenv installed. 2. change directory to the directory that contains this README.rst file. 3. **virtualenv pollaxe** and then **source pollaxe/bin/activate** 4. **pip install -r requirements.txt** 5. **mkdir pollaxe/coverage** Building the sphinx docs ========================= 1. change directory to docs 2. **make html** Running django-coverage ======================== 1. python manage.py testhttp://readthedocs.org/docs/django-party-pack/en/latest/_sources/install.txt
Daniel Greenfeld @pydanny pageheader I’m stupid Sphinx makes me look good! ============= Installation ============= .. note:: For things with **font like this** it means type it at the command line and hit enter. The Basics =========== 0. **git clone https://pydanny@github.com/pydanny/django-party-pack.git** 1. Make sure you have virtualenv installed. 2. change directory to the directory that contains this README.rst file. 3. **virtualenv pollaxe** and then **source pollaxe/bin/activate** 4. **pip install -r requirements.txt** 5. **mkdir pollaxe/coverage** Building the sphinx docs ========================= 1. change directory to docs 2. **make html** Running django-coverage ======================== 1. python manage.py test http://readthedocs.org/docs/django-party-pack/en/latest/_sources/install.txt
Daniel Greenfeld @pydanny pageheader I’m stupid Sphinx makes me look good! =============note Installation =============block .. note:: For things with **font like this** it means type it at the command line and hit enter. The Basics =========== 0. **git clone https://pydanny@github.com/pydanny/django-party-pack.git** 1. Make sure you have virtualenv installed. 2. change directory to the directory that contains this README.rst file. 3. **virtualenv pollaxe** and then **source pollaxe/bin/activate** 4. **pip install -r requirements.txt** 5. **mkdir pollaxe/coverage** Building the sphinx docs ========================= 1. change directory to docs 2. **make html** Running django-coverage ======================== 1. python manage.py test http://readthedocs.org/docs/django-party-pack/en/latest/_sources/install.txt
Daniel Greenfeld @pydanny pageheader I’m stupid Sphinx makes me look good! =============note Installation =============block .. note:: For things with **font like this** it means type it at the command line and hit enter. The Basics =========== 0. **git clone https://pydanny@github.com/pydanny/django-party-pack.git** 1. Make sure you have virtualenv installed.section 2. 3. change directory to the directory that contains this README.rst file. **virtualenv pollaxe** and then **source pollaxe/bin/activate**headers 4. **pip install -r requirements.txt** 5. **mkdir pollaxe/coverage** Building the sphinx docs ========================= 1. change directory to docs 2. **make html** Running django-coverage ======================== 1. python manage.py test http://readthedocs.org/docs/django-party-pack/en/latest/_sources/install.txt
Daniel Greenfeld @pydanny I’m stupidhttp://readthedocs.org/docs/django-party-pack
Daniel Greenfeld @pydanny I’m stupidSphinxmakes me lookgood! http://readthedocs.org/docs/django-party-pack
Daniel Greenfeld @pydanny I’m stupid Sphinx makes me look good!http://readthedocs.org/docs/django-party-pack/en/latest/reference_polls.html
Daniel Greenfeld @pydanny I’m stupid Sphinx makes me look good!http://readthedocs.org/docs/django-party-pack/en/latest/reference_polls.html
Daniel Greenfeld @pydanny I’m stupid Sphinx makes me look good! ======================== Reference for Polls App ======================== The polls app is a copy of the Django tutorial with some mild PEP-8 cleanup. ``polls.models`` ================= .. automodule:: polls.models :members: ``polls.views`` ================= .. automodule:: polls.views :members: ``polls.tests`` ================= .. automodule:: polls.tests.test_models :members: :undoc-members: .. automodule:: polls.tests.test_views :members: :undoc-members:http://readthedocs.org/docs/django-party-pack/en/latest/reference_polls.html
Daniel Greenfeld @pydanny I’m stupid Sphinx makes me look good! ======================== page Reference for Polls App ========================header The polls app is a copy of the Django tutorial with some mild PEP-8 cleanup. ``polls.models`` ================= .. automodule:: polls.models :members: ``polls.views`` ================= .. automodule:: polls.views :members: ``polls.tests`` ================= .. automodule:: polls.tests.test_models :members: :undoc-members: .. automodule:: polls.tests.test_views :members: :undoc-members: http://readthedocs.org/docs/django-party-pack/en/latest/reference_polls.html
Daniel Greenfeld @pydanny I’m stupid Sphinx makes me look good! ======================== page Reference for Polls App ========================header The polls app is a copy of the Django tutorial with some mild PEP-8 cleanup. ``polls.models`` =================auto- .. automodule:: polls.models :members:model ``polls.views`` ================= .. automodule:: polls.views :members: ``polls.tests`` ================= .. automodule:: polls.tests.test_models :members: :undoc-members: .. automodule:: polls.tests.test_views :members: :undoc-members: http://readthedocs.org/docs/django-party-pack/en/latest/reference_polls.html
Daniel Greenfeld @pydanny I’m stupid Sphinx makes me look good! ======================== page Reference for Polls App ========================header The polls app is a copy of the Django tutorial with some mild PEP-8 cleanup. ``polls.models`` =================auto- .. automodule:: polls.models :members:model ``polls.views`` ================= .. automodule:: polls.views :members: auto-model ``polls.tests`` ================= for undocumented .. automodule:: polls.tests.test_models :members: items :undoc-members: .. automodule:: polls.tests.test_views :members: :undoc-members: http://readthedocs.org/docs/django-party-pack/en/latest/reference_polls.html
Daniel Greenfeld @pydanny I’m stupid Sphinx makes me look good!http://readthedocs.org/docs/django-party-pack/en/latest/reference_polls.html
Daniel Greenfeld @pydanny I’m stupid Sphinx makes me look good!http://readthedocs.org/docs/django-party-pack/en/latest/reference_polls.html
Daniel Greenfeld @pydanny Sphinx walk-throughhttp://audreyr.posterous.com/how-to-create-sphinx-docs-the-python-github-r or http://bit.ly/audreyr-sphinx
I’m lazy
Daniel Greenfeld @pydannyI’m lazy
Daniel Greenfeld @pydanny I’m lazy• Don’t wanna do anything twice
Daniel Greenfeld @pydanny I’m lazy• Don’t wanna do anything twice• Don’t wanna debug code when I had it working before
Daniel Greenfeld @pydanny I’m lazy• Don’t wanna do anything twice• Don’t wanna debug code when I had it working before• Don’t wanna upload zip files per document change
Daniel Greenfeld @pydanny I’m lazyDon’t wanna do anything twice
Daniel Greenfeld @pydanny I’m lazy Don’t wanna do anything twice• If I write the same code twice I stick it in a function
Daniel Greenfeld @pydanny I’m lazy Don’t wanna do anything twice• If I write the same code twice I stick it in a function• Then I stick the function into a util module.
Daniel Greenfeld @pydanny I’m lazy Don’t wanna do anything twice• If I write the same code twice I stick it in a function• Then I stick the function into a util module.• Then I put it on Github so I don’t lose it.
Daniel Greenfeld @pydanny I’m lazy Don’t wanna do anything twice• If I write the same code twice I stick it in a function• Then I stick the function into a util module.• Then I put it on Github so I don’t lose it.• Isn’t this kinda the whole thing behind Open Source?
Daniel Greenfeld @pydanny I’m LazyDon’t wanna debug code when I had it working before
Daniel Greenfeld @pydanny I’m LazyDon’t wanna debug code when I had it working before • Manually testing code by watching it run is hard...
Daniel Greenfeld @pydanny I’m LazyDon’t wanna debug code when I had it working before • Manually testing code by watching it run is hard... • ...and boring...
Daniel Greenfeld @pydanny I’m LazyDon’t wanna debug code when I had it working before • Manually testing code by watching it run is hard... • ...and boring... • ...and hence is error prone.
Daniel Greenfeld @pydanny I’m LazyDon’t wanna debug code when I had it working before • Manually testing code by watching it run is hard... • ...and boring... • ...and hence is error prone. • Meaning you have to do more work.
Daniel Greenfeld @pydanny I’m LazyAre you testing enough?
Daniel Greenfeld @pydanny I’m Lazy Are you testing enough? Stick even the ‘basicstuff’ in the docs!
Daniel Greenfeld @pydanny I’m LazyAre you testing enough?
Daniel Greenfeld @pydanny I’m Lazy Are you testing enough?Yeah, some of the configuration is off. Will be fixed soon.
Daniel Greenfeld @pydanny Coverage Tricks• coverage.py is great• django-coverage runs coverage.py for Django• But you only want to test your own apps
Daniel Greenfeldsettings.py @pydanny import os.path PROJECT_ROOT = os.path.abspath(os.path.dirname(__file__)) Super PREREQ_APPS = ( django.contrib.auth, userful django.contrib.contenttypes, django.contrib.sessions,django or third- django.contrib.sites, django.contrib.messages, My custom party-apps django.contrib.admin, apps django-debug-toolbar’, ) PROJECT_APPS = (INSTALLED_APPS polls, ) INSTALLED_APPS = PREREQ_APPS + PROJECT_APPSexclude this stuff COVERAGE_MODULE_EXCLUDES = [ tests$, settings$, urls$, locale$, migrations, fixtures, admin$, ] Output results See next page! COVERAGE_MODULE_EXCLUDES += PREREQ_APPS here COVERAGE_REPORT_HTML_OUTPUT_DIR = "coverage" HTML_OUTPUT_DIR = os.path.join(PROJECT_ROOT, "coverage") TEST_RUNNER = testrunner.OurCoverageRunner
testrunner.py Daniel Greenfeld @pydanny# Make our own testrunner that by default only tests our ownappsfrom django.conf import settingsfrom django.test.simple import DjangoTestSuiteRunnerfrom django_coverage.coverage_runner import CoverageRunnerclass OurTestRunner(DjangoTestSuiteRunner): def build_suite(self, test_labels, *args, **kwargs): return super(OurTestRunner,self).build_suite(test_labels or settings.PROJECT_APPS, *args, **kwargs)class OurCoverageRunner(OurTestRunner, CoverageRunner): pass This only runs the tests on apps we want tested and skips the rest!
Daniel Greenfeld @pydanny I’m LazyAre you testing enough?
Daniel Greenfeld @pydanny I’m Lazy Are you testing enough?Yeah, some of the configuration is off. Will be fixed soon.
Daniel Greenfeld @pydanny I’m LazyDon’t wanna upload zip files per document change
Daniel Greenfeld @pydanny I’m LazyDon’t wanna upload zip files per document change READ
Daniel Greenfeld @pydanny I’m LazyDon’t wanna upload zip files per document change READ THE
Daniel Greenfeld @pydanny I’m LazyDon’t wanna upload zip files per document change READ THE DOCS
Daniel Greenfeld @pydanny I’m LazyDon’t wanna upload zip files per document change READ THE DOCS .ORG
Daniel Greenfeld @pydanny I’m LazyDon’t wanna upload zip files per document change READ THE DOCS .ORG http://readthedocs.org / http://rtfd.org
Daniel Greenfeld @pydanny I’m stupid Can’t remember things• Documentation makes me look good• Docstrings are awesome• Learn you some Restructured Text• Write down even the slide bullets!• https://github.com/pydanny/pydanny-event-notes
Daniel Greenfeld @pydanny I’m stupid Can’t remember things• Documentation makes me look good• Docstrings are awesome• Learn you some Restructured Text• Write down even the slide bullets!• https://github.com/pydanny/pydanny-event-notes• http://pydanny-event-notes.rtfd.org
Daniel Greenfeld @pydannyImport your project I’m Lazy Host your docs on http://rtfd.org
Daniel Greenfeld @pydanny I’m LazyHost your docs on http://rtfd.org
Daniel Greenfeld @pydanny I’m LazyHost your docs on http://rtfd.org
Daniel Greenfeld @pydanny I’m LazyHost your docs on http://rtfd.org
Daniel Greenfeld @pydanny I’m LazyHost your docs on http://rtfd.org
Daniel Greenfeld @pydanny I’m LazyHost your docs on http://rtfd.org Admin
Daniel Greenfeld @pydanny I’m LazyHost your docs on http://rtfd.org Admin Service Hook
Daniel Greenfeld @pydanny I’m LazyHost your docs on http://rtfd.org Admin Service Hook ReadTheDocs
Daniel Greenfeld @pydanny I’m LazyHost your docs on http://rtfd.org Admin Service Hook ReadTheDocs Active
Daniel Greenfeld @pydannyI’m Lazy django-party-pack-rtfd.org
Daniel Greenfeld @pydannyI’m Lazy pydanny-event-notes.rtfd.org
Daniel Greenfeld @pydannySphinx Trick! /django-party-pack /docs /conf.py Makes Sphinx play nicely with Django
Don’t be smart and lazy
Daniel Greenfeld @pydanny Django Worst PracticeMagical INSTALLED_APPS += [p for p in os.listdir(BASE) if os.path.isdirr(p)]settings MIDDLEWARE_CLASSES = [...] def callback(arg, dirname, fnames): code if middleware.py in fnames: m = %s.middleware % os.path.split(dirnaame)[-1] THIS MIDDLEWARE_CLASSES.append(m) urlpatterns = patterns(, ...) CODE ISMagical for app in settings.INSTALLED_APPS: if not app.startswith(django): BROKEN p = url(^%s/ % app, include(%s.urls) % app) urls urlpatterns += patterns(, p) code http://www.slideshare.net/jacobian/the-best-and-worst-of-django
Daniel Greenfeld @pydanny Django Worst Practice ‘Magical configuration code’Magical INSTALLED_APPS += [p for p in os.listdir(BASE) if os.path.isdirr(p)]settings MIDDLEWARE_CLASSES = [...] def callback(arg, dirname, fnames): code if middleware.py in fnames: m = %s.middleware % os.path.split(dirnaame)[-1] THIS MIDDLEWARE_CLASSES.append(m) urlpatterns = patterns(, ...) CODE ISMagical for app in settings.INSTALLED_APPS: if not app.startswith(django): BROKEN p = url(^%s/ % app, include(%s.urls) % app) urls urlpatterns += patterns(, p) code http://www.slideshare.net/jacobian/the-best-and-worst-of-django
Daniel Greenfeld @pydanny Django Worst Practice ‘Magical configuration code’Magical INSTALLED_APPS += [p for p in os.listdir(BASE) if os.path.isdirr(p)]settings MIDDLEWARE_CLASSES = [...] def callback(arg, dirname, fnames): code if middleware.py in fnames: m = %s.middleware % os.path.split(dirnaame)[-1] THIS MIDDLEWARE_CLASSES.append(m) urlpatterns = patterns(, ...) CODE ISMagical for app in settings.INSTALLED_APPS: if not app.startswith(django): BROKEN p = url(^%s/ % app, include(%s.urls) % app) urls urlpatterns += patterns(, p) code Ugh. http://www.slideshare.net/jacobian/the-best-and-worst-of-django
Daniel Greenfeld @pydanny Fixed Django Practice urlpatterns = patterns("",PREREQ_APPS = [ # Django url(r"^$", homepage, name="home"), "django.contrib.admin", url(r"^accounts/", include("accounts.urls")), "django.contrib.auth", url(r"^admin/", include(admin.site.urls)), "django.contrib.contenttypes", url(r"^about/", include("about.urls")), "django.contrib.sessions", url(r"^profiles/", include("profiles.urls")), "django.contrib.sites", url(r"^notices/", include("notification.urls")), "django.contrib.messages", ... "django.contrib.humanize", MIDDLEWARE_CLASSES = [ ) "django.contrib.flatpages", "django.middleware.common.CommonMiddleware", "django.contrib.sessions.middleware.SessionMiddleware", # external "django.middleware.csrf.CsrfViewMiddleware", "notification", # must be first "django.contrib.auth.middleware.AuthenticationMiddleware", "staticfiles", "reversion.middleware.RevisionMiddleware", "uni_form", "django.contrib.messages.middleware.MessageMiddleware", ... ... ] ]Explicit is better This isn’t that much typing, is it? then Implicit
Daniel Greenfeld @pydanny Fixed Django Practice urlpatterns = patterns("",PREREQ_APPS = [ # Django url(r"^$", homepage, name="home"), "django.contrib.admin", url(r"^accounts/", include("accounts.urls")), "django.contrib.auth", url(r"^admin/", include(admin.site.urls)), "django.contrib.contenttypes", url(r"^about/", include("about.urls")), "django.contrib.sessions", url(r"^profiles/", include("profiles.urls")), "django.contrib.sites", url(r"^notices/", include("notification.urls")), "django.contrib.messages", ... "django.contrib.humanize", MIDDLEWARE_CLASSES = [ ) "django.contrib.flatpages", "django.middleware.common.CommonMiddleware", "django.contrib.sessions.middleware.SessionMiddleware", # external "django.middleware.csrf.CsrfViewMiddleware", "notification", # must be first "django.contrib.auth.middleware.AuthenticationMiddleware", "staticfiles", "reversion.middleware.RevisionMiddleware", "uni_form", "django.contrib.messages.middleware.MessageMiddleware", ... ... ] ] Python’s design is predicated on the proposition that code is more often read than written. http://www.slideshare.net/jacobian/the-best-and-worst-of-django/44
I’m stupid and lazy
Daniel Greenfeld @pydannyTechnical Debthttp://bit.ly/technical-debt
Daniel Greenfeld @pydanny Technical DebtPostponed Activities http://bit.ly/technical-debt
Daniel Greenfeld @pydanny Technical DebtPostponed Activities • Documentation http://bit.ly/technical-debt
Daniel Greenfeld @pydanny Technical DebtPostponed Activities • Documentation • unshared knowledge • Tests • attending to TODO statements http://bit.ly/technical-debt
Daniel Greenfeld @pydanny Technical DebtPostponed Activities • Documentation • unshared knowledge • Tests • attending to TODO statements • Code too confusing to be modified easily http://bit.ly/technical-debt
Advocacy
Daniel Greenfeld @pydannyWhy?
Daniel Greenfeld @pydanny More funcommunityhttp://www.flickr.com/photos/pydanny/5851931370/
Daniel GreenfeldJane Developer @pydanny Advocacy
Daniel Greenfeld Jane Developer @pydanny Advocacy• Now is the time
Daniel Greenfeld Jane Developer @pydanny Advocacy• Now is the time• Empowerment through Education
Daniel Greenfeld Jane Developer @pydanny Advocacy• Now is the time• Empowerment through Education• Contribute to open source
Daniel Greenfeld Jane Developer @pydanny Advocacy• Now is the time• Empowerment through Education• Contribute to open source• If you don’t step up then no one will
Daniel Greenfeld Joe Developer @pydanny AdvocacyHow to get involved with PyLadies as a man
Daniel Greenfeld Joe Developer @pydanny AdvocacyHow to get involved with PyLadies as a man • Give your own time
Daniel Greenfeld Joe Developer @pydanny AdvocacyHow to get involved with PyLadies as a man • Give your own time • Honor your promised commitments
Daniel Greenfeld Joe Developer @pydanny AdvocacyHow to get involved with PyLadies as a man • Give your own time • Honor your promised commitments • Give kudos to the men who bring ladies!
Daniel Greenfeld Joe Developer @pydanny AdvocacyHow to get involved with PyLadies as a man • Give your own time • Honor your promised commitments • Give kudos to the men who bring ladies! • Step back: Don’t try to run things.
Daniel GreenfeldAcme Corporation @pydanny Advocacy http://en.wikipedia.org/wiki/File:Acme_anvil.gif
Daniel Greenfeld Acme Corporation @pydanny Advocacy How to get involved as a companyhttp://en.wikipedia.org/wiki/Acme_Corporation
Daniel Greenfeld Acme Corporation @pydanny Advocacy How to get involved as a companyhttp://en.wikipedia.org/wiki/Acme_Corporation
Daniel Greenfeld Acme Corporation @pydanny Advocacy How to get involved as a company • Sponsor because it’s the right thing to dohttp://en.wikipedia.org/wiki/Acme_Corporation
Daniel Greenfeld Acme Corporation @pydanny Advocacy How to get involved as a company • Sponsor because it’s the right thing to do • Sponsor because you get a tax breakhttp://en.wikipedia.org/wiki/Acme_Corporation
Daniel Greenfeld Acme Corporation @pydanny Advocacy How to get involved as a company • Sponsor because it’s the right thing to do • Sponsor because you get a tax break • Sponsor because good developers noticehttp://en.wikipedia.org/wiki/Acme_Corporation
Daniel Greenfeld Acme Corporation @pydanny Advocacy How to get involved as a company • Sponsor because it’s the right thing to do • Sponsor because you get a tax break • Sponsor because good developers notice • Mozillahttp://en.wikipedia.org/wiki/Acme_Corporation
Daniel Greenfeld Acme Corporation @pydanny Advocacy How to get involved as a company • Sponsor because it’s the right thing to do • Sponsor because you get a tax break • Sponsor because good developers notice • Mozilla • cars.comhttp://en.wikipedia.org/wiki/Acme_Corporation
Daniel Greenfeld Joe/Jane Developer @pydanny Resources party-packhttps://github.com/pydanny/django-party-pack/ http://django-party-pack.rtfd.org/ http://bit.ly/audreyr-sphinx
Questions?
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Carlos Leite
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