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# Split dirname / basename -> List
print(os.path.split(a))

# Split Drive / Rest -> List
print(os.path.splitdrive(a))

# Split file path / suffix -> List
print(os.path.splitext(a))

Yes. Use os.path.splitext(see Python 2.X documentation or Python 3.X documentation):

>>> import os
>>> filename, file_extension = os.path.splitext('/path/to/somefile.ext')
>>> filename
'/path/to/somefile'
>>> file_extension
'.ext'

# Split UNC path from full path
print(os.path.splitunc(a))

# Join two paths intelligently
b = os.path.join("C:\\Users\\p.doulgeridis\\Desktop\\", "\\Python.Path.Manipulation.py") 
print("a is:" + str(a))
print("b is: " + str(b))

# Normalize path (Join \\.\\ etc)
a = os.path.normpath("C:\\Users\\p.doulgeridis\\Desktop\\.\\Python.Path.Manipulation.py")

# Check if path is absolute
print(os.path.isabs(sys.argv[0]))

###################################################
# Using os.path.walk

# OS.PATH.WALK
# Traverse a directory tree
# Iterate over all subdirs, and files
# rootDir = '.'
# for dirname, subdirList, fileList in os.walk(rootDir):
    # #print(dirname, subdirList, fileList)
    # print('Found directory: %s' % dirname)
    # for fname in fileList:
        # print('\t%s' % fname)

# iterate over all subdirs and files, starting from top
rootDir = '.'
for dirname, subdirList, fileList in os.walk(rootDir, topdown=True):
    #print(dirname, subdirList, fileList)
    print('Found directory: %s' % dirname)
    for fname in subdirList:
        print('\t%s' % fname)


###################################################


# iterate over all subdirs and files, starting from bottom
rootDir = '.'
for dirname, subdirList, fileList in os.walk(rootDir, topdown=False ):
    #print(dirname, subdirList, fileList)
    print('Found directory: %s' % dirname)
    for fname in subdirList:
        print('\t%s' % fname)
    

# \\\\\\\\\\\\\\\\
path = "c:\\python25"

i = 0
for (path, dirs, files) in os.walk(path):
    print path
    print dirs
    print files
    print "----"
    i += 1
    if i >= 4:
        break
    

#######################################################
# Get last creation date





#######################################################
# Function form 
def creationtimeHR(file_in, time_format):
    import os
    from datetime import datetime
    
    time_in = os.path.getctime(file_in)
    time_ot = datetime.fromtimestamp(time_in).strftime(time_format)
    return time_ot
 


print(creationtimeHR(sys.argv[0], '%Y-%m-%d %H:%M:%S'))
print(creationtimeHR(sys.argv[0], '%Y%m%d%H%M%S')) 
print(creationtimeHR(sys.argv[0], '%Y-%m-%d')) 
print(creationtimeHR(sys.argv[0], '%H%M%S')) 

#########################################################
# Get last modified time
print(os.path.getmtime(sys.argv[0]))

#########################################################
# Function form - Human Readable

def lastmodifytimeHR(file_in, time_format):
    import os
    from datetime import datetime
    
    time_in = os.path.getmtime(file_in)
    time_ot = datetime.fromtimestamp(time_in).strftime(time_format)
    return time_ot
    
    
print(lastmodifytimeHR(sys.argv[0], '%Y-%m-%d %H:%M:%S'))
print(lastmodifytimeHR(sys.argv[0], '%Y%m%d%H%M%S'))
print(lastmodifytimeHR(sys.argv[0], '%Y%m%d'))
print(lastmodifytimeHR(sys.argv[0], '%H:%M:%S'))

###########################################
# Get last access time 
print(os.path.getatime(sys.argv[0]))

##########################################
# Function form - Human Readable

def lastaccesstimeHR(file_in, time_format):
    '''
    Names: lastaccesstimeHR
    Functions: lastaccesstimeHR(file_in, time_format)
    Input:     * <file_in> or <sys.argv[0]>
               * time_format (look at examples)
    Output: Last access time, Human Readable
    Usage: print(lastaccesstimeHR(sys.argv[0], '%Y-%m-%d %H:%M:%S'))
    Notes: Using datetime module to convert to human readable date string.
    '''
    import os
    from datetime import datetime
    
    time_in = os.path.getatime(file_in)
    time_ot = datetime.fromtimestamp(time_in).strftime(time_format)
    return time_ot
    
    
print(lastaccesstimeHR(sys.argv[0], '%Y-%m-%d %H:%M:%S'))
print(lastaccesstimeHR(sys.argv[0], '%Y%m%d'))
print(lastaccesstimeHR(sys.argv[0], '%Y%m%d%H%M%S'))
print(lastaccesstimeHR(sys.argv[0], '%H:%M:%S'))

# to be able to calculate between different dates, we need to use the numerical 
# representation, use datetime module.

# Check if file exists
print(os.path.exists(sys.argv[0]))

# Check if a file is a file
print(os.path.isfile(sys.argv[0]))

# Check if a file is dir
print(os.path.isdir(sys.argv[0]))

###############################################
# To use dirname, we have to feed it abspath.


# dirname of script
print(os.path.dirname(os.path.abspath(sys.argv[0])))

# dirname of a file
print(os.path.dirname(os.path.abspath(file_in)))

def dirnameoffile(file_in):
  '''
  Notes: for dirname of script file_in = sys.argv[0]
  Notes: We have to use abspath to get dirname.
  '''
  return os.path.dirname(os.path.abspath(file_in))
  
  
  
#################################################
# dirname

def dirnameslash(file_in):

    import os
    return (str((os.path.dirname(os.path.abspath(file_in)))) + "\\")
    
    
print(dirnameslash(sys.argv[0]))

import os
import sys

file_in = sys.argv[1]

# absolute path of script
print(os.path.abspath(sys.argv[0]))

# absolute path of file in
print(os.path.abspath(file_in))


def abspathoffile(file_in):
  '''
  Note: for abs path of script file_in = sys.argv[1]
  '''
  return os.path.abspath(file_in)

import os
import sys

file_in = sys.argv[1]


# basename of script
print(os.path.basename(sys.argv[0]))

# basename of file
print(os.path.basename(file_in))


def basenameoffile(file_in):
  '''
  Notes: for basename path of script file_in = sys.argv[1]
  '''
  return os.path.basename(sys.argv[0])
  

# Convert input paths to Raw strings
    #path = r'%s' % variable
    in_file_conv = r'%s' % file_in
    ot_file_conv = r'%s' %file_ot