从virtualenv，点击冻结> requirements.txt给予垃圾的TONES！如何修剪？ [英] From virtualenv, pip freeze > requirements.txt give TONES of garbage! How to trim it out?

问题描述

我正在关注本教程：
http://devcenter.heroku.com/articles / django

在某些时候，我被允许做：

 点击冻结> （$）
 
 
 
 
（Ofc。from virtualenv创建python实例）
 
 
 
我得到这个：
 （venv）przemoli @ ubuntu：〜/ Programowanie / hellodjango $ cat requirements.txt 
 BeautifulSoup == 3.2.0 
 Brlapi == 0.5.5 
 CherryPy == 3.1.2 
 ClientForm == 0.2.10 
 Django == 1.3 
 GnuPGInterface == 0.3.2 
 PAM == 0.4.2 
 PIL == 1.1.7 
路线== 1.12.3 
 Twisted-Core == 11.0.0 
 Twisted-Names == 11.0.0 
 Twisted-Web == 11.0.0 
 WebOb == 1.0.8 
 adium-theme-ubuntu == 0.3。 1 
 apt-xapian-index == 0.44 
 apturl == 0.5.1ubuntu1 
 chardet == 2.0.1 
 command-not-found == 0.2.44 
 configglue == 1.0 
 cssutils == 0.9.8a1 
 defer == 1.0.2 
 distribute == 0.6.19 
 django-tagging == 0.3.1 
 dnspython == 1.9.4 
 duplicateity == 0.6.15 
 gnome-app-install == 0.4.7-nmu1ubuntu2 
 httplib2 == 0.7.2 
 jockey == 0.9.4 
 keyring == 0.6.2 
 launchpadlib == 1.9.8 
 lazr.restfulclient == 0.11.2 
 lazr.uri == 1.0.2 $ b $ lo s == 2.3.0 
 lxml == 2.3 
 mechanize == 0.1.11 
 nvidia-common == 0.0.0 
 oauth == 1.0.1 
 onboard == 0.96.1 
 oneconf == 0.2.6.7 
 papyon == 0.5.5 
 pexpect == 2.3 
活塞迷你客户端== 0.6 
 protobuf == 2.4.0a 
 psycopg2 == 2.4.4 
 pyOpenSSL == 0.12 
 pycrypto == 2.3 
 pycups == 1.9.59 
 pycurl == 7.19 .0 
 pyinotify == 0.9.1 
 pyparsing == 1.5.2 
 pyserial == 2.5 
 pysmbc == 1.0.10 
 python-apt == 0.8 .0ubuntu9 
 python-dateutil == 1.4.1 
 python-debian == 0.1.20ubuntu2 
 python-virtkey == 0.60.0 
 pyxdg == 0.19 
 sessioninstaller == 0.0.0 
 simplejson == 2.1.6 
 system-service == 0.1.6 
 ubuntu-sso-client == 1.4.0 
 ubuntuone-couch = = 0.3.0 
 ubuntuone-installer == 2.0.0 
 ubuntuone-storage-protocol == 2.0.0 
 ufw == 0.30.1-2ubuntu1 
无人值守升级= = 0.1 
 usb-creator == 0.2.23 
 virtualenv == 1.6.4 
 wadllib == 1.2.0 
 wsgiref == 0.1.2 
 xdiagnose = = 1.1 
 xkit == 0.0.0 
 zope.interface == 3.6.1 
  
当de我在ubuntu上的主要python安装中看到很多东西。 Ubuntu使用python本身就是一些BAD（ubuntu-one，usb-creator等）。
 
 
 
我不需要他们在heroku！我只需要Django，psycopg2及其依赖关系。 
我甚至不知道它的漏洞，或virutalenv。 （如果你想知道我的设置看看上面的链接，我把它复制到终端）
解决方案
这是一个bug我太好了当您创建没有  -  no-site-packages 标志的virtualenv时，会发生这种情况。
 
 
 
有一对您可以做的事情：
 
 
使用创建virtualenv  - 无站点包标志。
 
 
安装应用程序时，不要直接运行 pip install< name> ，而是将库添加到 requirements.txt 首先，然后安装要求。这是较慢的，但确保您的要求更新。
 
 
手动删除不需要的库。我遵循的经验法则是在我的 INSTALLED_APPS 和数据库适配器中添加任何内容。大多数其他必需的库将因为依赖而自动安装。我知道它的愚蠢，但这是我通常最终做的。
 
 
  - 编辑 -  
 
 
 
我以前写过一个几本脚本帮助管理这个。第一个运行点冻结，并将找到的库添加到提供的需求文件中，另一个运行pip install，然后将其添加到需求文件中。
  function pipa（）{
＃将包添加到需求文件中。 
＃用法：pipa< package> <要求文件的路径> 
 package_name = $ 1 
 requirements_file = $ 2 
 if [[-z $ requirements_file]] 
 then 
 requirements_file ='。/ requirements.txt'
 fi 
 package_string =`pip freeze | grep -i $ package_name` 
 current_requirements =`cat $ requirements_file` 
 echo$ current_requirements\\\
 $ package_string| LANG = C sort | uniq> $ requirements_file 
} 
 
函数pipia（）{
＃安装包并添加到需求文件中。 
＃用法：pipia< package> <要求文件的路径> 
 package_name = $ 1 
 requirements_file = $ 2 
 if [[-z $ requirements_file]] 
 then 
 requirements_file ='。/ requirements.txt'
 fi 
 pip install $ package_name 
 pipa $ package_name $ requirements_file 
} 
  
 
I'm following this tutorial:
http://devcenter.heroku.com/articles/django

At some point I'm suposed to do:
pip freeze > requirements.txt
(Ofc. from virtualenv created instance of python)

And I get this:
(venv)przemoli@ubuntu:~/Programowanie/hellodjango$ cat requirements.txt 
BeautifulSoup==3.2.0
Brlapi==0.5.5
CherryPy==3.1.2
ClientForm==0.2.10
Django==1.3
GnuPGInterface==0.3.2
PAM==0.4.2
PIL==1.1.7
Routes==1.12.3
Twisted-Core==11.0.0
Twisted-Names==11.0.0
Twisted-Web==11.0.0
WebOb==1.0.8
adium-theme-ubuntu==0.3.1
apt-xapian-index==0.44
apturl==0.5.1ubuntu1
chardet==2.0.1
command-not-found==0.2.44
configglue==1.0
cssutils==0.9.8a1
defer==1.0.2
distribute==0.6.19
django-tagging==0.3.1
dnspython==1.9.4
duplicity==0.6.15
gnome-app-install==0.4.7-nmu1ubuntu2
httplib2==0.7.2
jockey==0.9.4
keyring==0.6.2
launchpadlib==1.9.8
lazr.restfulclient==0.11.2
lazr.uri==1.0.2
louis==2.3.0
lxml==2.3
mechanize==0.1.11
nvidia-common==0.0.0
oauth==1.0.1
onboard==0.96.1
oneconf==0.2.6.7
papyon==0.5.5
pexpect==2.3
piston-mini-client==0.6
protobuf==2.4.0a
psycopg2==2.4.4
pyOpenSSL==0.12
pycrypto==2.3
pycups==1.9.59
pycurl==7.19.0
pyinotify==0.9.1
pyparsing==1.5.2
pyserial==2.5
pysmbc==1.0.10
python-apt==0.8.0ubuntu9
python-dateutil==1.4.1
python-debian==0.1.20ubuntu2
python-virtkey==0.60.0
pyxdg==0.19
sessioninstaller==0.0.0
simplejson==2.1.6
system-service==0.1.6
ubuntu-sso-client==1.4.0
ubuntuone-couch==0.3.0
ubuntuone-installer==2.0.0
ubuntuone-storage-protocol==2.0.0
ufw==0.30.1-2ubuntu1
unattended-upgrades==0.1
usb-creator==0.2.23
virtualenv==1.6.4
wadllib==1.2.0
wsgiref==0.1.2
xdiagnose==1.1
xkit==0.0.0
zope.interface==3.6.1
When deploying on heroku it fails at Brlapi .....

I see lots of stuff from my main python installation which is on ubuntu. Which is BAD since Ubuntu use python for quite a few thing itself (ubuntu-one, usb-creator, etc..).

I do not need them on heroku! I need only Django, psycopg2, and their dependencies.
I do not even know if its fault of pip, or virutalenv. (If you want to know my setup look at link above I copied it into terminal)
解决方案
That is one thing that has bugged me too quite a bit. This happens when you create a virtualenv without the --no-site-packages flag.

There are a couple of things you can do:

Create virtualenv with the --no-site-packages flag.
When installing apps, dont run pip install <name> directly, instead, add the library to your requirements.txt first, and then install the requirements. This is slower but makes sure your requirements are updated.
Manually delete libraries you dont need. A rule of thumb i follow for this is to add whatever is there in my INSTALLED_APPS, and database adapters. Most other required libraries will get installed automatically because of dependencies. I know its silly, but this is what I usually end up doing.
-- Edit --

I've since written a couple of scripts to help manage this. The first runs pip freeze and adds the found library to a provided requirements file, the other, runs pip install, and then adds it to the requirements file.
function pipa() {
    # Adds package to requirements file.
    # Usage: pipa <package> <path to requirements file>
    package_name=$1
    requirements_file=$2
    if [[ -z $requirements_file ]]
    then
        requirements_file='./requirements.txt'
    fi
    package_string=`pip freeze | grep -i $package_name`
    current_requirements=`cat $requirements_file`
    echo "$current_requirements\n$package_string" | LANG=C sort | uniq > $requirements_file
}

function pipia() {
    # Installs package and adds to requirements file.
    # Usage: pipia <package> <path to requirements file>
    package_name=$1
    requirements_file=$2
    if [[ -z $requirements_file ]]
    then
        requirements_file='./requirements.txt'
    fi
    pip install $package_name
    pipa $package_name $requirements_file
}


                        
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