Ottenere PATH giusto per Python dopo l'installazione di MacPorts

Non riesco a importare alcune librerie di Python (PIL, psycopg2) che ho appena installato con MacPorts. Ho consultato questi forum e ho cercato di adattare la mia PATHvariabile ~/.bash_profileper risolvere il problema, ma non ha funzionato.

Ho aggiunto la posizione di PIL e psycopg2 a PATH.
So che Terminal sta usando una versione di Python /usr/local/binpiuttosto che quella installata da MacPorts su /opt/local/bin.

Devo usare la versione MacPorts di Python per assicurarmi che PIL e psycopg2 siano su sys.path quando uso python in Terminal? Devo passare alla versione MacPorts di Python o questo causerà più problemi?

Nel caso sia utile, ecco altri fatti:

PIl e psycopg2 sono installati in /opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages

which pythonritorna/usr/bin/python

$ echo $PATHritorni (ho separato ogni percorso per una facile lettura):

:/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/
:/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages
:/opt/local/bin
:/opt/local/sbin
:/usr/local/git/bin
:/usr/bin
:/bin
:/usr/sbin
:/sbin
:/usr/local/bin
:/usr/local/git/bin
:/usr/X11/bin
:/opt/local/bin

in Python, >>> sys.pathrestituisce:

/Library/Frameworks/SQLite3.framework/Versions/3/Python
/Library/Python/2.6/site-packages/numpy-override
/Library/Frameworks/GDAL.framework/Versions/1.7/Python/site-packages
/Library/Frameworks/cairo.framework/Versions/1/Python
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python26.zip
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-darwin
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac/lib-scriptpackages
 /System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-tk
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-old
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload
/Library/Python/2.6/site-packages
/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/PyObjC
/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/wx-2.8-mac-unicode

Accolgo con favore qualsiasi critica e commento, se una delle precedenti sembra sciocca o mal concepita. Sono nuovo di tutto questo. Grazie!

Esecuzione di OSX 10.6.5 su un MacBook Pro, invocando python 2.6.1 dal Terminale

Usa il comando 'notes' dopo aver installato python (cambia python26 in qualunque versione tu abbia installato):

$ port notes python26

Vedrai alcune variazioni sui consigli post installazione:

python26 has the following notes:
  To fully complete your installation and make python 2.6 the default,  please
  run:
    sudo port install python_select
    sudo port select python python26

È necessario installare python_selecte quindi selezionare python26come Python predefinito. Quindi, se hai effettivamente installato PIL e pyscopg2 usando MacPorts (cioè qualcosa di simile port install py26-psycopg2 py26-pil), non dovresti specificare nulla in PYTHONPATH. Inoltre, non è necessario aggiungere le /opt/local/Library/Frameworks/…directory al tuo PATH. Dopo averlo fatto, which pythondovrebbe tornare /opt/local/bin/python. Le porte Python installate da MacPorts /opt/local/Library/Frameworks/Python.frameworksono già presenti in sys.pathMacPorts Python. Non li trovavi prima perché stavi usando System Python (cioè /usr/bin/python), che non ha conoscenza dei pacchetti MacPorts Python.

Io penso che ho capito la risposta alla mia domanda. Ho modificato il mio file ~ / .bash_profile per includerlo

export PYTHONPATH=

e poi ho aggiunto tutti i percorsi esistenti in sys.path:

export PYTHONPATH=/Library/Frameworks/SQLite3.framework/Versions/3/Python:/Library/Python/2.6/site-packages/numpy-override:/Library/Frameworks/GDAL.framework/Versions/1.7/Python/site-packages:/Library/Frameworks/cairo.framework/Versions/1/Python:/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python26.zip:/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6:/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-darwin:/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac:/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac/lib-scriptpackages:/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python:/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-tk:/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-old:/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload:/Library/Python/2.6/site-packages:/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/PyObjC:/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/wx-2.8-mac-unicode:/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/:/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages:

e poi ho aggiunto i percorsi alle directory in cui MacPorts ha installato roba:

/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/:/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages:

ora quando stampo sys.path, sono inclusi i percorsi delle directory di installazione di MacPorts:

/Library/Frameworks/SQLite3.framework/Versions/3/Python
/Library/Python/2.6/site-packages/numpy-override
/Library/Frameworks/GDAL.framework/Versions/1.7/Python/site-packages
/Library/Frameworks/cairo.framework/Versions/1/Python
/Library/Frameworks/SQLite3.framework/Versions/3/Python
/Library/Python/2.6/site-packages/numpy-override
/Library/Frameworks/GDAL.framework/Versions/1.7/Python/site-packages
/Library/Frameworks/cairo.framework/Versions/1/Python
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python26.zip
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-darwin
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac/lib-scriptpackages
/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-tk
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-old
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload
/Library/Python/2.6/site-packages
/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/PyObjC
/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/wx-2.8-mac-unicode
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages

Adesso

>>> import PIL

e

>>> import psycopg2

funziona benissimo.