A Smarter Way to Learn Python - Chapter 63 Exercises

Fill in the blank to open a text file for writing. Make up the file name and handle.

with open(_______________

"greet.txt", "w") as f:

^ *•.+\.txt•, •w•\) as [a-zA-Z_][a-zA-Z0-9_]*: *$

Open a file for writing. Make up the file name and handle.

with open("greet.txt", "w") as f:

^ *with open$•.+\.txt•, •w•$ as [a-zA-Z_][a-zA-Z0-9_]*: *$

The file name has been assigned to the variable file_name. The file handle is f. Open the file for writing.

with open(file_name, "w") as f:

with `open`(`file_name`, `"`w`"`) `as `f`:

Type the four characters that are missing from this code.

with open("catalog", "w") as file_to_open:

.txt

Store a string in the file. Make up the string. Start by indenting.

with open("info.txt", "w") as my_file:

my_file.write("Hello, World!")

^ * my_file\.write$•.+•$ *$

Code the line that writes a string to a file. Make up the file handle and string. Start by indenting.

f.write("Hello, World!")

^ * [a-zA-Z_][a-zA-Z0-9_]*\.write$•.*•$ *$

Assign a filename that ends in .txt to a variable. Then open the file for writing. Make everything up.

file_to_write_to = "products.txt"
with open(file_to_write_to, "w") as f:

^ *([a-zA-Z_][a-zA-Z0-9_]*) = •.+\.txt•\nwith open$\1, •w•$ as [a-zA-Z_][a-zA-Z0-9_]*: *$

Assign a string to a variable. Open a text file to write to. Using the variable, store the string in the file.

greeting = "Hello, World"
with open("greet.txt", "w") as f:
f.write(greeting)

^ *([a-zA-Z_][a-zA-Z0-9_]*) = •.+•\nwith open$•[a-zA-Z_][a-zA-Z0-9_]*\.txt•, •w•$ as ([a-zA-Z_][a-zA-Z0-9_]*):\n (\2)\.write$\1$ *$

The text stored in the file possible-answers.txt is "No". What text is stored in the file after the following code runs?

with open("possible-answers.txt", "w") as f:
f.write("Yes")

"Yes"

^ *•?Yes•? *$

Open a file for writing. Store your name in it. Make everything up.

with open("my_name.txt", "w") as f:
f.write("Mark Myers")

^ *with open$•[a-zA-Z_][a-zA-Z0-9_]*\.txt•, •w•$ as ([a-zA-Z_][a-zA-Z0-9_]*):\n \1\.write$•.+•$ *$

In IDLE (See Appendix D), code two lines that open a file (your choice of filename that ends in .txt) and write your name to it.
Using any filename you like (that ends in .py), save the Python file to the Desktop.
Run the Python program.
In your file manager (File Explorer in Windows, Finder in Mac, whatever you're using in Linux), find the text file you just created.

A Smarter Way to Learn Python / Chapter 63 Exercises