How does Python call the system/primitive calls ?
Dear Sirs, I am trying to learn the way Python invokes system or primitive calls. I tried to locate the function in Python's source that handles such requests, but I found it's like picking a needle in ocean. Maybe you can let me know where to look for the documents and background readings ?-- James Yu[EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Need help to figure out urllib2.Request()
Hi folks,
I tried to open some web pages with urllib2.Request(url, data, headers), but
it always give me a 404 error.
Eg.
url = 'http://www.whatever.com/somephp.php'
data = {}
data['id'] = account
for i in book2Open:
data['book'] = i
url_data = urllib.urlencode(data)
request = urllib2.Request(url, url_data, headers)
response = urllib2.urlopen(request)
html = response.read()
==> HTTPError: HTTP Error 404: Not Found
However, the page is retrievable when I manually put url and data together.
Eg.
url = 'http://www.whatever.com/somephp.php'
data = {}
data['id'] = account
for i in book2Open:
data['book'] = i
url_data = urllib.urlencode(data)
full_url = url + '?' + url_data
request = urllib2.Request(full_url, "", headers)
response = urllib2.urlopen(request)
html = response.read()
==> works fine
Any idea ?
--
This is a UTF-8 formatted mail
---
James C.-C.Yu
--
http://mail.python.org/mailman/listinfo/python-list
How to overcome the incomplete download with urllib.urlretrieve ?
This is part of my code that invokes urllib.urlretrieve:
> for i in link2Visit:
> localName = i.split('/')
> i = i.replace(' ', '%20')
> tgtPath = ['d:\\', 'work', 'python', 'grab_n_view']
> localPath = ''
> for j in tgtPath:
> localPath = os.path.join(localPath, j)
> localPath = os.path.join(localPath, localName[-1])
> info = urllib.urlretrieve(i, localPath)
>
link2Visit stores the url to some photos.
After the script finishes running, I got a pile of incomplete JPG files,
each takes only 413 bytes of my disk space.
Did I miss something before using urllib.urlretrieve ?
--
This is a UTF-8 formatted mail
---
James C.-C.Yu
--
http://mail.python.org/mailman/listinfo/python-list
how to write text into file in ansi encoding ?
I am using *fileHandle = open(srcFile, 'w')* + *fileHandle.write('whatever')
* to put text into a file, and Python uses utf-8 encoding by default.
How do I configure or do anything to make Python writing files in ansi
encoding ?
--
This is a UTF-8 formatted mail
---
James C.-C.Yu
--
http://mail.python.org/mailman/listinfo/python-list
Re: how to write text into file in ansi encoding ?
I just figure out the how-to:
# first we open and read in chars as in utf-8 encoding
ansiLine = line.decode('utf-8', 'ignore')
# then writing it into another file in any encoding you like, it's big5 in
my case.
src_handle.write(ansiLine.encode('big5', 'ignore'))
--
This is a UTF-8 formatted mail
---
James C.-C.Yu
--
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The stange behaviour of Tkinter.Canvas
I tried to update the rectangle on a canvas to get the visual effect of progressbar. It works all right if I delete the existing objects (rectangle and text) and create a new one. However, if I invoke canvas.itemconfig() to update the existing objects' options, gui just went nuts. I am more than happy to receive any help and advise. My code is provided as follows: Start of Code import Tkinter import threading import time class Progressbar(Tkinter.Frame): def __init__(self, parent=None, color='white', width=200, height=15): Tkinter.Frame.__init__(self, parent) self.pack(expand=Tkinter.YES, fill=Tkinter.BOTH) canv = Tkinter.Canvas(self, bg=color, relief=Tkinter.SUNKEN) canv.config(width=width, height=height) canv.pack(side=Tkinter.LEFT, expand=Tkinter.YES, fill=Tkinter.BOTH) self.canv = canv self.width = width self.height = height progress = -10 rect = canv.create_rectangle(0, 0, 0, height, fill='beige') text = canv.create_text(width/2, height*2/3, text='0%') self.rect = rect self.text = text self.progress = progress self.parent = parent parent.progressbar = self self.UpdateProgress() def SetProgress(self, progress=0): canv = self.canv width = self.width height = self.height rect = self.rect text = self.text ##canv.delete(rect) ##canv.delete(text) ##rect = canv.create_rectangle(0, 0, progress*width/100, height, ## fill='beige') ##text = canv.create_text(width/2, height*2/3, ##text='%s' %(str(progress)) + '%') canv.itemconfig(rect, width=width*progress/100) ## comment this canv.itemconfig(text, text='%s' %(str(progress)) + '%') ## comment this ##self.rect = rect ##self.text = text def UpdateProgress(self): progress = self.progress progress = progress + 10 self.progress = progress self.SetProgress(progress) if progress < 100: self.after(500, self.UpdateProgress) if __name__ == '__main__': root = Tkinter.Tk() Progressbar(parent=root) root.mainloop() End of Code uncomment the lines and comment out the itemconfig() lines to see the difference in gui's behaviours. Thanks, -- This is a UTF-8 formatted mail --- James C.-C.Yu -- http://mail.python.org/mailman/listinfo/python-list
How to import custom python file in python server page (psp) ?
Hi folks,
I prepared a python script for dynamically get the absolute paths of the
files in certain folder.
Then I tried to invoke that function from my web server in a .psp file like
this:
1
2
3 asdfasdfasdfa
4
5 <%
6 import glob
7 import os
8 *import Helper
* 9
10 body = ''
11 top = 'asdfasdfasdfa'
12 links = {}
13 *Helper.GetLinks(top=top)
* 14 *paths = Helper.GenLinkPath(links)
* 15 body = paths
16 %>
17 <%=body%>
18
19
However, this is the error message I received when I open the page in a
browser:
> Mod_python error: "PythonHandler mod_python.psp"
>
> Traceback (most recent call last):
>
> File "/usr/lib/python2.5/site-packages/mod_python/apache.py", line 299,
> in HandlerDispatch
> result = object(req)
>
> File "/usr/lib/python2.5/site-packages/mod_python/psp.py", line 302, in
> handler
> p.run()
>
> File "/usr/lib/python2.5/site-packages/mod_python/psp.py", line 213, in
> run
> exec code in global_scope
>
> File "/var/www/.cyu021/.pic/index.psp", line 8, in
> import Helper
>
> ImportError: No module named Helper
*PS. I put Helper.py and index.psp in the same dir
*
Thanks in advance,
--
This is a UTF-8 formatted mail
---
James C.-C.Yu
--
http://mail.python.org/mailman/listinfo/python-list
click on hyper link and got 404 error
I am using "mod_python.publisher" to generate my web page that contains serveral links to local files. I also replace the path with my domain name like this: curDir = os.path.dirname(__file__) link = 'http://' + hostname + '/' + os.path.basename(curDir) + '/' files = os.listdir(curDir) for i in files: body = body + '' + i + '' + '' However, browser give me 404 error whenever I click on any of the links. Is there something wrong with how I build my file links ? Thanks, -- This is a UTF-8 formatted mail --- James C.-C.Yu -- http://mail.python.org/mailman/listinfo/python-list
