Using msvcrt.getch() in Eclipse / PyDev

Question

I wanted to use msvcrt.getch() in Eclipse with PyDev to read a signe char but I found out that it just don't work (but It works in the Windows console).

Any idea what to do ?

Answer 1

Maybe use sys.stdin.read when run in PyDev? like sys.stdin.read(1) read 1 line from input...For use in Windows console and in PyDev make same selection based on os and run variants(using sys.stdin.isatty). For example next code read timelimited user input. But when run in Windows console if program's standard input is piped in with another program's standard output, then sys.stdin.isatty returns False and input read with sys.stdin.read, not msvcrt.getch:

import sys, time
import platform
if platform.system() == "Windows":
    import msvcrt
else:
    from select import select

def input_with_timeout_sane(prompt, timeout, default):
    """Read an input from the user or timeout"""
    print prompt,
    sys.stdout.flush()
    rlist, _, _ = select([sys.stdin], [], [], timeout)
    if rlist:
        s = sys.stdin.readline().replace('\n','')
    else:
        s = default
        print s
    return s
def input_with_timeout_windows(prompt, timeout, default): 
    start_time = time.time()
    print prompt,
    sys.stdout.flush()
    input = ''
    read_f=msvcrt.getche
    input_check=msvcrt.kbhit
    if not sys.stdin.isatty( ):
        read_f=lambda:sys.stdin.read(1)
        input_check=lambda:True
    while True:
        if input_check():
            chr_or_str = read_f()
            try:
                if ord(chr_or_str) == 13: # enter_key
                    break
                elif ord(chr_or_str) >= 32: #space_char
                    input += chr_or_str
            except:
                input=chr_or_str
                break #read line,not char...        
        if len(input) == 0 and (time.time() - start_time) > timeout:
            break
    if len(input) > 0:
        return input
    else:
        return default

def input_with_timeout(prompt, timeout, default=''):
    if platform.system() == "Windows":
        return input_with_timeout_windows(prompt, timeout, default)
    else:
        return input_with_timeout_sane(prompt, timeout, default)

print "\nAnswer is:"+input_with_timeout("test?",10,"no input entered")