Question

My Python code:

mapArray = [["#","#","#"],["#","#","#"],["#","#","#"]]
for row in mapArray:
    for cell in row:
            print cell,
    print
print

prints this:

# # #
# # #
# # #

why not this:

###
###
###

Thanks much!

Answer 1

My preferred solution when I want Python to only print what I tell it to without inserting newlines or spaces is to use sys.stdout:

from sys import stdout
mapArray = [["#","#","#"],["#","#","#"],["#","#","#"]]
for row in mapArray:
    for cell in row:
            stdout.write(cell)
    stdout.write("\n")
stdout.write("\n")

The print statement documentation states, "A space is written before each object is (converted and) written, unless the output system believes it is positioned at the beginning of a line." This is why sys.stdout is the preferred solution here and is the reason why you’re seeing spaces in your output.