Python Gets the current directory path and ancestor path __python

When using Python, you will always encounter the use of path switching, such as the test.py under folder test to invoke the Data.txt file under the Data folder:

.
└──folder
    ├──data
    │   └──data.txt
    └──test
        └──test.py

A method can be added to the data file __init__.py then import data in the test.py can invoke Data.txt file;

Another way to manipulate the directory structure with the help of the Python OS module is to use the following:

Import OS

print ' * * * Get current directory * * *
os.getcwd ()
print Os.path.abspath (Os.path.dirname (__file__))

print ' * * * get Superior Directory * * * *
Os.path.abspath (Os.path.dirname (Os.path.dirname (__file__))
Print Os.path.abspath (Os.path.dirname (OS.GETCWD))
print Os.path.abspath (Os.path.join (), "..."

) print ' * * * gets on top of the directory * * *
Os.path.abspath (Os.path.join (OS.GETCWD), ". /.."))

The output results are:

Get current Directory * * */workspace/demo/folder/test/workspace/demo/folder/test * * *
access to

Superior directory * * *
Workspace/demo/folder
/workspace/demo/folder
/workspace/demo/folder

* * * access to Superior directory * * * *
Workspace/demo