Comando No se encontró al abrir la Terminal

Cuando abro una nueva terminal, obtengo lo siguiente:

Last login: Sun Jun  1 16:39:07 on ttys000
-bash: Setting: command not found
NAME-OF-COMPUTER-MacBook-Pro:~ name$ 

Estoy acostumbrado a ver la primera y la tercera línea, pero la segunda parece nueva. ¿Cómo arreglo esto?

EDITAR

Después de ejecutar bash -x -l como pidió Ian C, esta es la salida:

+ '[' -x /usr/libexec/path_helper ']'
++ /usr/libexec/path_helper -s
+ eval 'PATH="/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/usr/local/git/bin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin";' export 'PATH;'
++ PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/usr/local/git/bin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin
++ export PATH
+ '[' /bin/bash '!=' no ']'
+ '[' -r /etc/bashrc ']'
+ . /etc/bashrc
++ '[' -z '\s-\v\$ ' ']'
++ PS1='\h:\W \u\$ '
++ shopt -s checkwinsize
++ '[' Apple_Terminal == Apple_Terminal ']'
++ '[' -z '' ']'
++ PROMPT_COMMAND='update_terminal_cwd; '
+ Setting PATH for Python 2.7
bash: Setting: command not found
+ PATH=/Library/Frameworks/Python.framework/Versions/2.7/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/usr/local/git/bin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin
+ export PATH
+ PATH=/Library/Frameworks/Python.framework/Versions/2.7/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/usr/local/git/bin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin
+ export PATH
+ PATH=/Library/Frameworks/Python.framework/Versions/2.7/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/usr/local/git/bin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin
+ export PATH
+ PATH=/Library/Frameworks/Python.framework/Versions/3.4/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/usr/local/git/bin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin
+ export PATH
++ update_terminal_cwd
++ local 'SEARCH= '
++ local REPLACE=%20
++ local PWD_URL=file://Conner-Pikes-MacBook-Pro.local/Users/connerpike
++ printf '\e]7;%s\a' file://Conner-Pikes-MacBook-Pro.local/Users/connerpike

Además, ¿necesito esas cuatro largas líneas para algo que tenga que ver con Python? Parece innecesario. Cualquier ayuda en eso sería muy apreciada también.