python程式設計小技巧

#coding:utf-8

import sys
class people():
def __init__(self, name):
print "name:", name
print "*"*30
print "class_name:", self.__class__.__name__
if __name__ == "__main__":
p = people("zhangsan")

name: zhangsan

******************************
class_name: people

#coding:utf-8

import sys
def fun_1(name, age):
print "name: %s, age: %s" %(name, age)
def fun_2(school):
print "school: %s" %(school)
def run_fun(fun_name, *arg):
try:
fun_name(*arg)
except exception,e:
print "error\t error_type=%s\t error_info=%s" %(fun_name.__name__, repr(e))
if __name__ == "__main__":
run_fun(fun_1, "zhangsan", 29)
run_fun(fun_2, "henan politecnic university")
run_fun(fun_2, "henan politecnic university", "test")

name: zhangsan, age: 29

school: henan politecnic university
error	 error_type=fun_2	 error_info=typeerror('fun_2() takes exactly 1 argument (2 given)',)

str.split(str="", num=string.count(str))

返回值：返回分割後的字串列表。

示例：

print "hehe nlj 20".split(" ")

print "hehe nlj 20".split(" ", 1)

['hehe', 'nlj', '20']

['hehe', 'nlj 20']

#coding:utf-8

import sys
f = open("write.txt", "w")
my_str = "hello world !!!"
#方法1：
f.write(my_str+"\n")
#方法2：
print >> f, my_str

以上兩種方法的效果一樣

hello world !!!

hello world !!!

目錄結構如下：

|—load_conf.py

| ----conf

​ |----test_1.json

​ |----test_2.json

​ |----test_3.cfg

test_1.json

[

"demo1feature",
"demo2feature",
"demo3feature"
]

,

"outlier_model":
}

[default]

name="zhangsan"
age="30"
school="henan politecnic university"

#coding:utf-8

import json
import glob
import re
import sys
import configparser
def load_json():
featurelib_conf_dir = "conf"
featurelib_conf_suffix_extension = ".json"
for feature_lib_conf_file in glob.glob(featurelib_conf_dir+'/*'+ featurelib_conf_suffix_extension):
with open(feature_lib_conf_file, 'r') as f:
feature_production_conf = json.loads(re.sub('(\/\/.*)', '', re.sub('(/\*(.*?)\*/)', '', f.read(), flags=re.s)))
print feature_lib_conf_file, "*"*30, type(feature_production_conf)
if isinstance(feature_production_conf, list):
for k in feature_production_conf:
print k
elif isinstance(feature_production_conf, dict):
for k,v in feature_production_conf.items():
print k,v
def load_cfg():
conf_dir = "conf"
conf_suffix_extension = ".cfg"
for conf_file in glob.glob(conf_dir+'/*'+conf_suffix_extension):
print "conf_file:", conf_file, "*"*30
cfg = configparser.configparser()
cfg.read(conf_file)
sections = cfg.sections()
for section in sections:
print "section:", section, "+"*20
for k,v in cfg.items(section):
print k,"-->", v
if __name__ == "__main__":
load_json()
load_cfg()

conf/test_1.json ****************************** demo1feature

demo2feature
demo3feature
conf/test_2.json ****************************** outlier_model 
ug_model 
conf_file: conf/test_3.cfg ******************************
section: default ++++++++++++++++++++
name --> "zhangsan"
age --> "30"
school --> "henan politecnic university"

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