python notes (a) to get the current directory path and file
First, get the current path
1, using sys.argv [0]
SYS Import Print the sys.argv [0]
# output
# local path
2, os module
os Import Print os.getcwd () # Get the current working directory path print os.path.abspath ( '.') # get the current working directory path print os.path.abspath ( 'test.txt') # get the files in the current directory the working directory path print os.path.abspath ( '..') # get the parent directory of the current working! Note that the parent directory path print os.path.abspath (os.curdir) # Get the current working directory path
3, change the current directory
1) Use: os.chdir (path).
For example, if the current directory in the 'E:' below, and then enter the following files E files can be used os.chdir (E: \ files).
Thereafter, for example, test1 = open ( 'file1.txt'), the file will be opened in the 'E: \ files' directory under the file, rather than the 'E' under.
4, the return path combination
os.path.join('file1','file2','file3')
Were combined to obtain path file1 / file2 / file3
>>> print os.path.join('E:', 'file1', 'file2')
E:/file1/file2
>>> print os.path.join('/home', '/home/file1/', '/home/file1/file2/')
/home/file1/file2/
no.2
os Import root = os.getcwd () # get current path / Home / dir1 Print root # output # / Home / dir1 name = "file1" # define the file name of the print (os.path.join (root, name) ) # merge path names and file names, and print # output # / home / dir1 / file1
Second, access to all files in the current directory
1. os.walk () in the directory for the file name of the output directory tree walk up or down;
Syntax os.walk (top [, topdown = True [, onerror = None [, followlinks = False]]])
Parameters: Top - each clip file in the root directory (including itself), to produce 3-tuple ( dirpath, dirnames, filenames) [folder path
folder name, file name]. topdown - Alternatively, or not specified is True, a 3-tuple directory 3- tuple than its subfolders the first generation (directory top-down).
If topdown is False, 3- tuple than generating a directory (directory bottom-up) after the group of 3-membered to its subfolders. onerror - Alternatively, a function; it has a parameter called a OSError example. After reporting this error, continue to walk, or throw an exception terminated walk. followlinks - set to true, then by a soft link to access the directory.
2.
os Import
root = os.getcwd ()
DEF file_name (file_dir):
for root, dirs, Files in os.walk (file_dir):
Print "-----------"
Print root # os.walk ( ) directory
for all directory names print dirs # os.walk () directory of
print files # os.walk all non-directory file name () directory of
Print ""
file_name (root)
----------- ---------- ----
xls6-python parsing properties files
# -*- coding:utf-8 -*-
import time as t
import cx_Oracle as oracle
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
import random,os,math,re,time
import properties09 as prop
def main():
file_path = r'D:\backup\PycharmProjects\charm123\prop.properties'
dictProperties=prop.Properties(file_path).getProperties()
print (dictProperties)
print (type(dictProperties))
print (len(dictProperties))
print (dictProperties['username'])
print (dictProperties['url'])
print (dictProperties['driver'])
hang1=1
try:
hang1=dictProperties['hang1']
the except:
hang1 = 0
Print (hang1)
hang1. 1 =
the try:
hang1 dictProperties = [ 'Hang']
the except:
hang1 = 0
Print (hang1)
Print (os.curdir)
Print (os.pardir)
Print (os.defpath)
Print (os.path)
main ()
Import os
Print ( "=== === get the current directory")
# current directory path to the script work
print ( 'os.getcwd () script before working directory path:', os .getcwd ())
# os.path.abspath () to get the absolute path
print ( 'os.path.abspath () to get the absolute path:', os.path.abspath (os.path.dirname (__ file__)))
Print ( "get the current file-level directory === ===")
Print ( "get the current file-level directory === == 1 =", os.path.abspath (os.path.dirname (os.path.dirname (__ file__ ))))
print ( "=== get the parent directory of the current file 2 = ==", os.path.abspath (os.path.dirname (os.getcwd ())))
print ( "=== == get the current file parent directory =. 3 ", os.path.abspath with (the os.path.join (The os.getcwd ()," .. ")))
Print (" Get the current file-level directory === == 4 = ", os.path. dirname (os.getcwd ()))
# os.path.join () connected directory name and file or directory
print ( "==== set the path for the test_case files in the current folder parent directory ====")
path = os.path.join (os.path.dirname (os.getcwd ()), "test_case")
Print ( "==== set the path for the test_case files in the current folder parent directory ====", path)
Print ( "==== set the path for the test_case files in the current folder parent directory ====", os.path.join (os.path.dirname (os.getcwd ()), "test_case"))
DEF Zidian ( ):
dict = { 'the Name': 'Runoob', 'Age':. 7, 'Class': 'First'}
dict [ 'Age'] = # 88 updates Age
dict [ 'School'] = "Add Information" add information
print ( "dict [ 'Age' ]:", dict [ 'Age'])
Print ( "dict [ 'School']:", dict [ 'School'])
#
# del dict [ 'the Name'] # delete key 'the Name'
# dict.clear () # Empty dictionary
# del dict # delete the dictionary
#
# Print ( "dict [ 'Age']:", dict [ 'Age'])
# Print ( "dict [ 'School']:" immutable refers # called tuple is a tuple memory pointed to by the SUMMARY immutable.
# TUP1 = (12 is, 34.56)
# tup2 = ( 'ABC', 'XYZ')
#
# # the following modifications tuple element operation is illegal.
## TUP1 [0] = 100
#
Create a # # new tuple
# tup3 = TUP1 + tup2
# Print (TUP1)
# Print (tup2)
# Print (tup3)
# Print (tup3 [0]), dict [ 'School'])
#
# About tuples are immutable
# -*- coding:utf-8 -*-
import time as t
import cx_Oracle as oracle
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
import random,os,math,re,time
class Properties(object):
def __init__(self, fileName):
self.fileName = fileName
self.properties = {}
def __getDict(self,strName,dictName,value):
if(strName.find('.')>0):
k = strName.split('.')[0]
dictName.setdefault(k,{})
return self.__getDict(strName[len(k)+1:],dictName[k],value)
else:
dictName[strName] = value
return
def getProperties(self):
try:
pro_file = open(self.fileName, 'r')
for line in pro_file.readlines():
line = line.strip().replace('\n', '')
if line.find("#")!=-1:
line=line[0:line.find('#')]
if line.find('=') > 0:
strs = line.split('=')
strs[1]= line[len(strs[0])+1:]
self.__getDict(strs[0].strip(),self.properties,strs[1].strip())
except:
raise
else:
pro_file.close()
return self.properties
#
# from PropertiesUtil import Properties
# dictProperties=Properties("global.properties").getProperties()
# print dictProperties
#
def main():
file_path = r'D:\backup\PycharmProjects\charm123\prop.properties'
dictProperties=Properties(file_path).getProperties()
print (dictProperties)
print (type(dictProperties))
print (len(dictProperties))
print (dictProperties['url'])
print (dictProperties['driver'])
hang1=1
try:
hang1=dictProperties['hang1']
except :
hang1=0
print (hang1)
# main()
def zidian():
dict = {'Name': 'Runoob', 'Age': 7, 'Class': 'First'}
) # # # The following modifications tuple element operation is illegal. # # TUP1 [0] = 100 # # # Create a new tuple # tup3 = TUP1 + tup2 # Print (TUP1) # Print (tup2) # Print (tup3) # Print (tup3 [0]), dict [ ' School ']) # # About tuples are immutable
First, get the current path
1, using sys.argv [0]
SYS Import Print the sys.argv [0]
# output
# local path
2, os module
os Import Print os.getcwd () # Get the current working directory path print os.path.abspath ( '.') # get the current working directory path print os.path.abspath ( 'test.txt') # get the files in the current directory the working directory path print os.path.abspath ( '..') # get the parent directory of the current working! Note that the parent directory path print os.path.abspath (os.curdir) # Get the current working directory path
3, change the current directory
1) Use: os.chdir (path).
For example, if the current directory in the 'E:' below, and then enter the following files E files can be used os.chdir (E: \ files).
Thereafter, for example, test1 = open ( 'file1.txt'), the file will be opened in the 'E: \ files' directory under the file, rather than the 'E' under.
4, the return path combination
os.path.join('file1','file2','file3')
Were combined to obtain path file1 / file2 / file3
>>> print os.path.join('E:', 'file1', 'file2')
E:/file1/file2
>>> print os.path.join('/home', '/home/file1/', '/home/file1/file2/')
/home/file1/file2/
no.2
os Import root = os.getcwd () # get current path / Home / dir1 Print root # output # / Home / dir1 name = "file1" # define the file name of the print (os.path.join (root, name) ) # merge path names and file names, and print # output # / home / dir1 / file1
Second, access to all files in the current directory
1. os.walk () in the directory for the file name of the output directory tree walk up or down;
Syntax os.walk (top [, topdown = True [, onerror = None [, followlinks = False]]])
Parameters: Top - each clip file in the root directory (including itself), to produce 3-tuple ( dirpath, dirnames, filenames) [folder path
folder name, file name]. topdown - Alternatively, or not specified is True, a 3-tuple directory 3- tuple than its subfolders the first generation (directory top-down).
If topdown is False, 3- tuple than generating a directory (directory bottom-up) after the group of 3-membered to its subfolders. onerror - Alternatively, a function; it has a parameter called a OSError example. After reporting this error, continue to walk, or throw an exception terminated walk. followlinks - set to true, then by a soft link to access the directory.
2.
os Import
root = os.getcwd ()
DEF file_name (file_dir):
for root, dirs, Files in os.walk (file_dir):
Print "-----------"
Print root # os.walk ( ) directory
for all directory names print dirs # os.walk () directory of
print files # os.walk all non-directory file name () directory of
Print ""
file_name (root)
----------- ---------- ----