Question

When I write a script that updates a printed line, for example like this:

for i in range(101):
    print(str(i) + "% \r", end="")

and run this script using the terminal (Ubuntu), I get the correct output, that updated the line:

100%

However, using Pydev in Eclipse, the Eclipse console does this:

0%
1%
2%
...
100%

Anyone know how to fix this? Thanks in advance!

Answer 1

This seems to be the old CR LF problem. Depending on the OS and the console you are using, CR and LF as a line termination will be interpreted differently.

Some systems require a CRLF as an end of line.
Some systems only require LF but do the CR implicitly.
Some systems (like yours) do a LF before each CR implicitly, although this is the first time I see this.

Maybe there is a way to edit the newline settings for your PyDev console.

EDIT: Or you might use ANSI escape codes for moving the cursor around. Like CSInD for n characters to the left or CSInC for n characters to the right.