You may not remove last character. But you can get the similar effect by overwriting the last character. For that, you need to move the console cursor backwards by outputting a ‘\b’ (backspace) character like shown below. #include<iostream> using namespace std; int main() { cout<<“Hi”; cout<<‘\b’; //Cursor moves 1 position backwards cout<<” “; //Overwrites letter … Read more
You can add this line on top of your script: #!/bin/bash # redirect stdout/stderr to a file exec >logfile.txt 2>&1 OR else to redirect only stdout use: exec > logfile.txt
Use the capfd fixture. Example: def test_foo(capfd): foo() # Writes “Hello World!” to stdout out, err = capfd.readouterr() assert out == “Hello World!” See: http://pytest.org/en/latest/fixture.html for more details And see: py.test –fixtures for a list of builtin fixtures. Your example has a few problems. Here is a corrected version: def f(name): print “hello {}”.format(name) def … Read more
Django users can use django.core.management.color.supports_color function. if supports_color(): … The code they use is: def supports_color(): “”” Returns True if the running system’s terminal supports color, and False otherwise. “”” plat = sys.platform supported_platform = plat != ‘Pocket PC’ and (plat != ‘win32’ or ‘ANSICON’ in os.environ) # isatty is not always implemented, #6223. is_a_tty … Read more
The code in your question may deadlock if the child process produces enough output on stderr (~100KB on my Linux machine). There is a communicate() method that allows to read from both stdout and stderr separately: from subprocess import Popen, PIPE process = Popen(command, stdout=PIPE, stderr=PIPE) output, err = process.communicate() If you need to read … Read more
File descriptors 0, 1 and 2 are for stdin, stdout and stderr respectively. File descriptors 3, 4, .. 9 are for additional files. In order to use them, you need to open them first. For example: exec 3<> /tmp/foo #open fd 3. echo “test” >&3 exec 3>&- #close fd 3. For more information take a … Read more
Python 3 Solution The print() function accepts an end parameter which defaults to \n (new line). Setting it to an empty string prevents it from issuing a new line at the end of the line. def install_xxx(): print(“Installing XXX… “, end=””, flush=True) install_xxx() print(“[DONE]”) Python 2 Solution Putting a comma on the end of the … Read more
The solution is rather simple. Since the example shows a StreamHandler it’s possible to pass in a stream (instead of the path to a file). By default, everything that is echo’ed in PHP is written to php://stdout / php://output so we can simple use one of those as stream for the StreamHandler: <?php use Monolog\Logger; … Read more
Since I’m not allowed to edit Jauco’s answer, I’ll give the full answer that worked for me (Russell’s page relies on un-guaranteed behaviour that, if you close file descriptor 1 for STDOUT, the next creat call will open FD 1. So, run a simple endless script like this: import time while True: print ‘test’ time.sleep(1) … Read more
You can use the stdout= and stderr= parameters to subprocess.call() to direct stdout or stderr to a file descriptor of your choice. So maybe something like this: import os devnull = open(os.devnull, ‘w’) subprocess.call(shlex.split( ‘/usr/local/itms/bin/iTMSTransporter -m lookupMetadata ‘ ‘-apple_id %s -destination %s’ % (self,apple_id, self.destination)), stdout=devnull, stderr=devnull) Using subprocess.PIPE, if you’re not reading from the … Read more