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I bought a new macbook and I am so new to mac os. However, I read a lot on internet about how to install scrap

I did everything, but i have a problem with installing lxml

I tried this on terminal

pip install lxml
and a lot of stuff started to be downloading and many text was written on the terminal, but i got this error message on red in the terminal
1 error generated.
error: command '/usr/bin/clang' failed with exit status 1
----------------------------------------
Cleaning up...
Command /Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python -c "import setuptools, tokenize;__file__='/private/var/folders/rd/fxgsy46j3l77f6l9h_hv2fjm0000gn/T/pip_build_mycomputername/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/rd/fxgsy46j3l77f6l9h_hv2fjm0000gn/T/pip-WvDTPQ-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /private/var/folders/rd/fxgsy46j3l77f6l9h_hv2fjm0000gn/T/pip_build_mycomputername/lxml
Storing debug log for failure in /Users/mycomputername/.pip/pip.log
and now when I call scrapy spider that words with lxml, i got this error message
ImportError: No module named lxml.html
what should I do please?
any suggestion is appreciated 
                I think this is a duplicate question. you can find your ans [here][1]. This might also help center[2].    [1]: stackoverflow.com/questions/10666578/…
– DarKnight
                May 23, 2015 at 7:26
                @DarKnight the link you provided states that i have to go to Xcode then preferences then download and download the command line tools. However, i went there and there wasn't command line tools. there was just some updates for the os and some iOS simulators to install
– Marco Dinatsoli
                May 23, 2015 at 8:04
installed all xcode (2.8GB) from apple store.
to be sure that the installation is successfully finished: open terminal and typed 
xcode-select -p
you should get something like this:
/Applications/Xcode.app/Contents/Developer
now you need to install command line tools. try to type gcc on the terminal, then there are two possibilities: either you get a window asking to install the tools and you have to click on install, or you will get an error message.
if you get an error message, then don't worry just try to install the tools using this command xcode-select --install
after that restart the mac and then re install lxml again like this :
pip install lxml
then try to run scrapy again
if you encounter any other error on any other library, easily just reinstall scrapy using easy_install and NOT using pip
This probably happens because you did not re-install the Command Line Tools after upgrading.
Usually XCode should be upgraded to the latest version (4.4) (I believe when I updated to 10.8 I also updated a whole bunch of other applications, including XCode). After the update you need to re-install the Command Line Tools. This can now be done via a setting in XCode:
Go to "Preferences -> Downloads" and install "Command Line Tools".
                why you talking about xcdoe? i have never upgraded the Xcode or the mac os. i bought the mac just a week ago and installed Xcode.
– Marco Dinatsoli
                May 23, 2015 at 7:59
                i went there and there wasn't command line tools. there was just some updates for the os and some iOS simulators to install
– Marco Dinatsoli
                May 23, 2015 at 8:04
        
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