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   ½øÈëpythonµÄÃüÁîÐУ¬ÊäÈë import MySQLdb Èç¹ûûÓб¨´í£¬Ö¤Ã÷´ËÄ£¿éÒѾ­°²×°£¬¿ÉÒÔÌø¹ýÒÔϲ½Öè¡£
2£¬Çл»µ½Óû§Ä¿Â¼/home/liuguanyu,È¥ÏÂÔØ×îеÄMySQLdb°²×°°ü£ºÎÒÏÂÔØµÄÊÇMySQL-python-1.2.3c1.tar.gz ¡£ÕâÒ»²½ËùÓÐÃüÁÈçÏ£º
   wget -O python-1.2.3c1.tar.gz  http://cdnetworks-kr-1.dl.sourceforge.net/project/mysql-python/mysql-python-test/1.2.3c1/MySQL-python-1.2.3c1.tar.gz
   tar xzvf python-1.2.3c1.tar.gz  
   cd MySQL-python-1.2.3c1
   python setup.py build
3£¬³öÏÖ±¨´í£ºImportError: No module named setuptools
4£¬»Øµ½Óû§Ä¿Â¼/home/liuguanyu£¬°²×°setuptools£¬ÎÒ°²×°µÄÊÇsetuptools-0.6c8 ,ÕâÒ»²½µÄËùÓÐÃüÁÈçÏ£º
   wget -O setuptools-0.6c8.tar.gz  http://pypi.python.org/packages/source/s/setuptools/setuptools-0.6c8.tar.gz
   tar xzvf setuptools-0.6c8.tar.gz
   cd setuptools-0.6c8
   python setup.py build
   sudo python setup.py install
5£¬»Øµ½Óû§MySQLdbÔ´ÂëĿ¼
6£¬ÔËÐÐ python setup.py build
7£¬±¨´í£ºmysql_config not found
8£¬ÉÏÒ»²½±¨´íÒòΪmysql_configÃüÁîûÓÐÕÒµ½¡£
9£¬Ê¹ÓÃwhereis mysqlÃüÁîÕÒµ½mysql°²×°Ä¿Â¼£¬¼ÙÉèmysql°²×°ÔÚ/usr/local/mysql
10, »Øµ½MySQLdbÔ´ÂëĿ¼.
11, vi setup_posix.py »ò vim
setup_posix.py´ò¿ªÅäÖÃÎļþ¡£´Ëʱ£¬ÕÒµ½mysql_config.path
Ò»ÐУ¬°Ñ·¾¶Ç°Ãæ¼ÓÉϵÚ9²½µÄmysql°²×°Â·¾¶£¬binĿ¼¡£¼´mysql_config.path =
"/usr/local/mysql/bin/mysql_config"
12, ÔÙ´ÎÔËÐРpython setup.py build
13, ±¨´í /usr/bin/ld: cannot find -lmysqlclient_r
14, Çл»µ½rootÓû§£¬Ö´ÐÐ
    echo "/usr/local/mysql/lib/mysql" >> /etc/ld.so.conf
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example of python operator overloadind

And last here is the overload operators example:
# map() takes two (or more) arguments, a function and a list to apply the function to
# lambda can be put anywhere a function is expected
# map() calls lambada for every element in the self list
# since Vector has overloaded __getitem__ and __len_ ......

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def Heapify(mylist, start, end):
left = 0
right = 0
maxv = 0
left = start * 2
right = start * 2 + 1
while left <= end:
maxv = left
if right <= end:
if mylist[left] < mylist[right]:
maxv = right
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random() Return the next random floating point number in the range [0.0, 1.0). 
randint(a,b) Return a random integer N such that a <=
N <= b
randrange([star ......
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