stdoutをテキストウィジェットにリダイレクト

Question

sys.stdoutをPythonのテキストウィジェットにリダイレクトする際にいくつかの回答が検索されていますが、私の特定のニーズには適用できません。

私はというダウンローダーのためにtkinterを使って簡単なGUIをコーディングしました。テキストウィジェットにstdoutメッセージを表示したいと思います。

それでは、私のコードで私の場合は、明確にしましょう：だから

from Tkinter import* 
import Tkinter as tk 
import tkMessageBox 
import urllib2 
import sys 


#functions 
def downloadlinks(): 

# Configuration BEGIN 
    LOGIN = '' 
    PASSWORD = '' 
    USE_SSL = False 
    VERIFY_MD5SUM = False 
# Configuration END 


    __version__ = '0.1.0' 

    import sys 
    import os 
    import urllib 
    import subprocess 
    import time 
    try: 
     import hashlib 
     md5 = hashlib.md5 
    except ImportError: 
     import md5 
     md5 = md5.new 

    def info(msg): 
     sys.stdout.write('\n%s\n\n' % msg) 
     sys.stdout.flush() 

    def error(msg): 
     sys.stderr.write('%s\n' % msg) 
     sys.stderr.flush() 
     sys.exit(1) 

    def transfer_progress(blocks_transfered, block_size, file_size): 
     percent = float((blocks_transfered * block_size * 100)/file_size) 
     progress = float(blocks_transfered * block_size/1024) 
     downspeed = (float(blocks_transfered * block_size)/float(time.time() - starttime))/1024 
     sys.stdout.write("Complete: %.0f%% - Downloaded: %.2fKb - Speed: %.3fkb/s\r" % (percent, progress, downspeed)) 
     sys.stdout.flush() 

    def download(source, target): 
     global starttime 
     starttime = time.time() 
     filename, headers = urllib.urlretrieve(source, target, transfer_progress) 
     sys.stdout.write('Complete: 100%\n') 
     sys.stdout.flush() 
     for ss in headers: 
      if ss.lower() == "content-disposition": 
       filename = headers[ss][headers[ss].find("filename=") + 9:] # 9 is len("filename=")=9 
     urllib.urlcleanup()  # Clear the cache 
     return filename 

    def verify_file(remote_md5sum, filename): 
     f = open(filename, "rb") 
     m = md5() 
     while True: 
      block = f.read(32384) 
      if not block: 
       break 
      m.update(block) 
     md5sum = m.hexdigest() 
     f.close() 
     return md5sum == remote_md5sum 

    def main(): 

     file_link = "https://rapidshare.com/files/33392/examplefile.rar" 

     info('Downloading: %s' % file_link.split("/")[5]) 

     try: 
      rapidshare_com, files, fileid, filename = file_link.rsplit('/')[-4:] 
     except ValueError: 
      error('Invalid Rapidshare link') 
     if not rapidshare_com.endswith('rapidshare.com') or files != 'files': 
      error('Invalid Rapidshare link') 

     if USE_SSL: 
      proto = 'https' 
      info('SSL is enabled00000000000') 

     else: 
      proto = 'http' 

     if VERIFY_MD5SUM: 
      info('MD5 sum verification is enabled') 

     info('Downloading: %s' % file_link.split("/")[5]) 


     if filename.endswith('.html'): 
      target_filename = filename[:-5] 
     else: 
      target_filename = filename 
     info('Save file as: %s' % target_filename) 


    # API parameters 

     params = { 
     'sub': 'download_v1', 
     'fileid': fileid, 
     'filename': filename, 
     'try': '1', 
     'withmd5hex': '0', 
     } 

     if VERIFY_MD5SUM: 
      params.update({ 
       'withmd5hex': '1', 
       }) 

     if LOGIN and PASSWORD: 
      params.update({ 
       'login': LOGIN, 
       'password': PASSWORD, 
       }) 

     params_string = urllib.urlencode(params) 

     api_url = '%s://api.rapidshare.com/cgi-bin/rsapi.cgi' % proto 

# Get the first error response 
     conn = urllib.urlopen('%s?%s' % (api_url, params_string)) 
     data = conn.read() 
#print data 
     conn.close() 

# Parse response 
     try: 
      key, value = data.split(':') 
     except ValueError: 
      error(data) 
     try: 
      server, dlauth, countdown, remote_md5sum = value.split(',') 
     except ValueError: 
      error(data) 

# Wait for n seconds (free accounts only) 
     if int(countdown): 
      for t in range(int(countdown), 0, -1): 
       sys.stdout.write('Waiting for %s seconds...\r' % t) 
       sys.stdout.flush() 
       time.sleep(1) 
      info('Waited for %s seconds. Proceeding with file download...' % countdown) 

    # API parameters for file download 

     dl_params = { 
      'sub': 'download_v1', 
      'fileid': fileid, 
      'filename': filename, 
      } 

     if LOGIN and PASSWORD: 
      dl_params.update({ 
       'login': LOGIN, 
       'password': PASSWORD, 
       }) 
     else: 
      dl_params.update({ 
       'dlauth': dlauth, 
       }) 

     dl_params_string = urllib.urlencode(dl_params) 

     download_link = '%s://%s/cgi-bin/rsapi.cgi?%s' % (proto, server, dl_params_string) 

     downloaded_filename = download(download_link, target_filename) 

     if VERIFY_MD5SUM: 
      if remote_md5sum.lower() == 'not found': 
       info('Remote MD5 sum is not available. Skipping MD5 sum verification...') 
      elif downloaded_filename: 
       if verify_file(remote_md5sum.lower(), downloaded_filename): 
        info('Downloaded and verified %s' % downloaded_filename) 
       else: 
        error('The downloaded file could not be verified') 
      else: 
       error('Will not verify. File not found: %s' % downloaded_filename) 

     info('Operation Complete') 

    if __name__ == '__main__': 
     try: 
      main() 
     except KeyboardInterrupt: 
      error('\nAborted') 

    tkMessageBox.showinfo('Download Status Notification',"All files have been downloaded.") 







#Window Title  
app=Tk() 
app.title("Downloader") 
app.geometry('700x1080+550+0') 
app.resizable(0,0) 


#Title  
titleText = StringVar() 
titleText.set("Downloader") 
label0=Label(app,textvariable=titleText,font=("Times", 16,"bold"),height=2) 
label0.pack() 

# 


f1 = Frame(app, width=600, height=200) 
xf1 = Frame(f1, relief=RAISED, borderwidth=5) 

#Text 
labelText = StringVar() 
labelText.set("Enter link:") 
label1=Label(f1,textvariable=labelText,font=("Times", 14)) 
label1.pack(side=LEFT, padx=5,pady=8) 


#Field 
linkname = StringVar(None) 
linkname1 =Entry(f1,textvariable = linkname,font=("Times", 14),justify=CENTER) 
linkname1.pack(side=LEFT, padx=5,pady=8) 
Label(f1, text='').place(relx=1.06, rely=0.125,anchor=CENTER) 
f1.pack() 


#Button 
downloadbutton=Button(app,text="Download",font=("Times", 12, "bold"),width=20,borderwidth=5,foreground = 'white',background = 'blue',command=downloadlinks) 
downloadbutton.pack() 

##### 
downloadmessages = Text(app,height = 6,width=80,font=("Times", 12),foreground = 'cyan',background='black') 
downloadmessages.insert(END,"") 
downloadmessages.pack(padx=20,pady=1) 

app.mainloop() 

---

、私は記述的にいくつかのquestions.Myコードを聞いてみようというようなものです：

-importモジュール

-def downloadlinks（）

- ウィンドウのタイトル

-title

- フレーム付き： テキスト フィールド

-Button

-Textウィジェット

それはmy_frame = your_gui_code_here()を言うとき、それはテキストウィジェットのコードを参照していますか？

downloadmessages = Text(app,height = 6,width=80,font=("Times", 12),foreground = 'cyan', background='black') 
downloadmessages.insert(END,"") 
downloadmessages.pack(padx=20,pady=1) 

Answer 1

サブプロセスとして開いてそこからstdoutを書き込み可能なソースにパイプする必要があります。

import subprocess 
my_frame = your_gui_code_here() 
process = subprocess.Popen('ls', stdout=subprocess.PIPE, stderr=subprocess.PIPE) 
my_frame.add_text(process.communicate()[0]) #or however you add text.