난 당신이 모듈을 수정하는 짧은 원하는 일을하기에는 EasyGUI의 textbox
기능을지고의 간단한 방법이 있다고 생각하지 않습니다. 클래스가 아닌 함수이기 때문에 쉽게 코드를 재사용하기 위해 하위 클래스를 파생 할 수 없습니다.
뉴스 그룹의 스레드에서 한 번 발견 된 일부 코드의 향상된 버전을 사용하여 텍스트 줄을 표시하는 별도의 Tkinter
창을 만드는 것이 가능합니다.
원래 코드는 출력 핸들이없는 GUI 응용 프로그램에서만 stderr
출력을 캐치하고 표시하도록 설계되었으므로 모듈의 이름은 errorwindow
입니다. 그러나 나는 stderr
과 stdout
을 하나의 easygui
기반 응용 프로그램에서 이러한 창으로 리다이렉트 할 수 있도록 수정했는데, 이름을 바꾸거나 주석을 업데이트하여 주위를 돌아 보지 못했습니다. stdout
리다이렉션. ;¬)
어쨌든, 모듈 정의하고 import
에드 때 OutputPipe
라는 이름의 파일과 같은 클래스의 두 인스턴스를 작성하여 작품과 파이썬 .pyw
에 보통 None
sys.stdout
및 sys.stderr
I/O 스트림 파일 오브젝트에 할당 GUI 응용 프로그램 (Windows). 출력이 처음에 이들 중 하나에 전송되면 동일한 모듈이 stdin
, stdout
및 stderr
입출력 핸들이 원래 프로세스와 연결된 별도의 Python 프로세스로 실행됩니다.
많은 일이 벌어지고 있지만 그 밖의 것이 없다면 조금 연구하면 easygui
님의 textbox
에게 원하는 것을 할 수있는 방법에 대한 아이디어를 줄 수 있습니다. 희망이 도움이됩니다.
참고 : 게시 된 코드는 파이썬 2.x를위한는 누구나 관심이 있다면, 다른 질문에 my answer 모두 파이썬 2와 3에서 작동 수정 된 버전이있다.
파일 errorwindow.py
:
# references:
# https://groups.google.com/d/msg/comp.lang.python/HWPhLhXKUos/TpFeWxEE9nsJ
# https://groups.google.com/d/msg/comp.lang.python/HWPhLhXKUos/eEHYAl4dH9YJ
#
# Here's a module to show stderr output from console-less Python
# apps, and stay out of the way otherwise. I plan to make a ASPN
# recipe of it, but I thought I'd run it by this group first.
#
# To use it, import the module. That's it. Upon import it will
# assign sys.stderr.
#
# In the normal case, your code is perfect so nothing ever gets
# written to stderr, and the module won't do much of anything.
# Upon the first write to stderr, if any, the module will launch a
# new process, and that process will show the stderr output in a
# window. The window will live until dismissed; I hate, hate, hate
# those vanishing-consoles-with-critical-information.
#
# The code shows some arguably-cool tricks. To fit everthing in
# one file, the module runs the Python interpreter on itself; it
# uses the "if __name__ == '__main__'" idiom to behave radically
# differently upon import versus direct execution. It uses TkInter
# for the window, but that's in a new process; it does not import
# TkInter into your application.
#
# To try it out, save it to a file -- I call it "errorwindow.py" -
# - and import it into some subsequently-incorrect code. For
# example:
#
# import errorwindow
#
# a = 3 + 1 + nonesuchdefined
#
# should cause a window to appear, showing the traceback of a
# Python NameError.
#
# --
# --Bryan
# ----------------------------------------------------------------
#
# martineau - Modified to use subprocess.Popen instead of the os.popen
# which has been deprecated since Py 2.6. Changed so it
# redirects both stdout and stderr. Added numerous
# comments, and also inserted double quotes around paths
# in case they have embedded space characters in them, as
# they did on my Windows system.
"""
Import this module into graphical Python apps to provide a
sys.stderr. No functions to call, just import it. It uses
only facilities in the Python standard distribution.
If nothing is ever written to stderr, then the module just
sits there and stays out of your face. Upon write to stderr,
it launches a new process, piping it error stream. The new
process throws up a window showing the error messages.
"""
import subprocess
import sys
import thread
import os
if __name__ == '__main__': # when spawned as separate process
# create window in which to display output
# then copy stdin to the window until EOF
# will happen when output is sent to each OutputPipe created
from Tkinter import BOTH, END, Frame, Text, TOP, YES
import tkFont
import Queue
queue = Queue.Queue(100)
def read_stdin(app, bufsize=4096):
fd = sys.stdin.fileno() # gets file descriptor
read = os.read
put = queue.put
while True:
put(read(fd, bufsize))
class Application(Frame):
def __init__(self, master=None, font_size=8, text_color='#0000AA', rows=25, cols=100):
Frame.__init__(self, master)
# argv[0]: name of this script (not used)
# argv[1]: name of script that imported this module
# argv[2]: name of redirected stream (optional)
if len(sys.argv) < 3:
title = "Output Stream from %s" % (sys.argv[1],)
else:
title = "Output Stream '%s' from %s" % (sys.argv[2], sys.argv[1])
self.master.title(title)
self.pack(fill=BOTH, expand=YES)
font = tkFont.Font(family='Courier', size=font_size)
width = font.measure(' '*(cols+1))
height = font.metrics('linespace')*(rows+1)
self.configure(width=width, height=height)
self.pack_propagate(0) # force frame to be configured size
self.logwidget = Text(self, font=font)
self.logwidget.pack(side=TOP, fill=BOTH, expand=YES)
# Disallow key entry, but allow copy with <Control-c>
self.logwidget.bind('<Key>', lambda x: 'break')
self.logwidget.bind('<Control-c>', lambda x: None)
self.logwidget.configure(foreground=text_color)
#self.logwidget.insert(END, '==== Start of Output Stream ====\n\n')
#self.logwidget.see(END)
self.after(200, self.start_thread,())
def start_thread(self, _):
thread.start_new_thread(read_stdin, (self,))
self.after(200, self.check_q,())
def check_q(self, _):
log = self.logwidget
log_insert = log.insert
log_see = log.see
queue_get_nowait = queue.get_nowait
go = True
while go:
try:
data = queue_get_nowait()
if not data:
data = '[EOF]'
go = False
log_insert(END, data)
log_see(END)
except Queue.Empty:
self.after(200, self.check_q,())
go = False
app = Application()
app.mainloop()
else: # when module is first imported
import traceback
class OutputPipe(object):
def __init__(self, name=''):
self.lock = thread.allocate_lock()
self.name = name
def __getattr__(self, attr):
if attr == 'pipe': # pipe attribute hasn't been created yet
# launch this module as a separate process to display any output
# it receives.
# Note: It's important to put double quotes around everything in case
# they have embedded space characters.
command = '"%s" "%s" "%s" "%s"' % (sys.executable, # command
__file__, # argv[0]
os.path.basename(sys.argv[0]), # argv[1]
self.name) # argv[2]
# sample command and arg values on receiving end:
# E:\Program Files\Python\python[w].exe # command
# H:\PythonLib\TestScripts\PyRemindWrk\errorwindow.py # argv[0]
# errorwindow.py # argv[1]
# stderr # argv[2]
# execute this script as __main__ with a stdin PIPE for sending output to it
try:
# had to make stdout and stderr PIPEs too, to make it work with pythonw.exe
self.pipe = subprocess.Popen(command, bufsize=0,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE).stdin
except Exception:
# output exception info to a file since this module isn't working
exc_type, exc_value, exc_traceback = sys.exc_info()
msg = ('%r exception in %s\n' %
(exc_type.__name__, os.path.basename(__file__)))
with open('exc_info.txt', 'wt') as info:
info.write('msg:' + msg)
traceback.print_exc(file=info)
sys.exit('fatal error occurred spawning output process')
return super(OutputPipe, self).__getattribute__(attr)
def write(self, data):
with self.lock:
self.pipe.write(data) # 1st reference to pipe attr will cause it to be created
# redirect standard output streams in the process importing the module
sys.stderr = OutputPipe('stderr')
sys.stdout = OutputPipe('stdout')
은 그 그것을 할 것입니다, 감사합니다! – Benjooster