问mac上的PyInstaller找不到libpython2.7

EN

#!/usr/bin/env python
from Tkinter import *
import Tix
import tkMessageBox
from sklearn import linear_model, decomposition, preprocessing
from sklearn.preprocessing import Imputer
from sklearn.cross_validation import cross_val_score, cross_val_predict
from sklearn.neighbors import KDTree 
import numpy as np
import collections
import array
import math
import csv
from collections import OrderedDict
import matplotlib
matplotlib.use("TkAgg")
import matplotlib.pyplot as plt
import matplotlib.dates as dates
from matplotlib.mlab import PCA
from mpl_toolkits.mplot3d import Axes3D
from scipy.stats import mode
import heapq
import sqlite3
from sqlite3 import datetime


root = Tk()

w = Label(root, text="Hello, world!")
w.pack()

root.mainloop()

$pyinstaller -w -F app.py 

57665 ERROR: Can not find path ./libpython2.7.dylib (needed by //anaconda/bin/python)
Traceback (most recent call last):
  File "//anaconda/bin/pyinstaller", line 11, in <module>
    sys.exit(run())
  File "//anaconda/lib/python2.7/site-packages/PyInstaller/__main__.py", line 90, in run
    run_build(pyi_config, spec_file, **vars(args))
  File "//anaconda/lib/python2.7/site-packages/PyInstaller/__main__.py", line 46, in run_build
    PyInstaller.building.build_main.main(pyi_config, spec_file, **kwargs)
  File "//anaconda/lib/python2.7/site-packages/PyInstaller/building/build_main.py", line 788, in main
    build(specfile, kw.get('distpath'), kw.get('workpath'), kw.get('clean_build'))
  File "//anaconda/lib/python2.7/site-packages/PyInstaller/building/build_main.py", line 734, in build
    exec(text, spec_namespace)
  File "<string>", line 16, in <module>
  File "//anaconda/lib/python2.7/site-packages/PyInstaller/building/build_main.py", line 212, in __init__
    self.__postinit__()
  File "//anaconda/lib/python2.7/site-packages/PyInstaller/building/datastruct.py", line 178, in __postinit__
    self.assemble()
  File "//anaconda/lib/python2.7/site-packages/PyInstaller/building/build_main.py", line 543, in assemble
    self._check_python_library(self.binaries)
  File "//anaconda/lib/python2.7/site-packages/PyInstaller/building/build_main.py", line 626, in _check_python_library
    raise IOError(msg)
IOError: Python library not found: libpython2.7.dylib, Python, .Python
This would mean your Python installation doesn't come with proper library files.
This usually happens by missing development package, or unsuitable build parameters of Python installation.

* On Debian/Ubuntu, you would need to install Python development packages
  * apt-get install python3-dev
  * apt-get install python-dev
* If you're building Python by yourself, please rebuild your Python with `--enable-shared` (or, `--enable-framework` on Darwin)

$sudo ln -s /usr/local/lib/libpython2.7.dylib //anaconda/lib/libpython2.7.dylib