PY-04-P1 File System and Error Handling Flashcards
___ creates a code block to try to execute code that may create an error
Try
____ handles an error in the try code
Except
runs only if no exception occured
Else
runs whether the code failed or succeeded
Finally
prints a custom error message
Raise
inserts an error message in a variable
Exception as a error
What is a file categorized as in Python
text or binary
enables access to a file for the python interpreter
Open( )
must be added after open to be able to read the file and/or save changes made
close()
writes content to an open file
write()
allows reading the file according to the permission
read()
is used to read a file line by line
readline( )
can also be used to read the number of bytes from the line
readline ( )
this function saves and closes a file
close
The f____ function is used to save a file and continute editing it
flush ( )
a ___ statement will create a context manager
with
The variable that contains the file is the one defined after __
as
Used to break down large programs into smaller, more easily managed files
Modules
The ___ module enables running system commands
OS
The ______ function allows system operations and the execution of shell commands
os.system( )
lists all the files in the specified directory
os.listdir(path)
the _____ before the directory insturcts the interpreter to regard the characters that follow as a raw string
r
changes the working directory
os.chdir ( )
creates a directory
os.mkdir ( )
removes a directory
os.rmdir ( )
renames a file
os.rename ( )
gets the location of the working directory
os.getcwd ( )
maps folders and files
os.walk ( )
provides information about files and directories and performs a statistical system call
os.stat( )
includes classes for date and time
datetime
is used to access data related to the OS and Hardware
platform
the _____ module enables generation of pseudo-random numbers
random
returns a random integer in the range that appears in parenthesis
.randint(x,y)
to open a file
open( )
use a ____ loop to read the file’s text line by line
for
use __ to choose which information to remove
split ( )
