Difference between revisions of "Python COM Examples"

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=Examples=
=Examples=


Try this Python-based COM automation “Hello World” code in XSI just for kicks!
Here is a simple Python-based COM automation 'Hello World' script.


<pre>
<pre>
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sheet.Range("A1").Value = "Hello World!"
sheet.Range("A1").Value = "Hello World!"
sheet.Range("A2").Value = str(Application.SIFilter(None, c.siObjectFilter))
sheet.Range("A2").Value = str(Application.SIFilter(None, c.siObjectFilter))
book.SaveAs("c:\myBook.xls")
book.SaveAs("c:\simple_example.xls")


sheet = None
sheet = None
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</pre>
</pre>


You will have created a file in your root C: drive called myBook.xls that is an Excel file containing one cell in which the words “Hello World!” are written. Please note that this COM usage is not limited to Python. You can do this in whatever language that supports COM. I’ll leave it up to the reader to learn more about the specifics of the different COM objects that are out there.
This will create an Excel spreadsheet in the root C:\ drive, called 'simple_example.xls'.


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But for your problem:
=COM Automation of Internet Explorer=


You are trying to read the page before it is completely loaded
A couple of examples using either a wait function or a simple sleep for synchronisation.
 
either add a wait function or a simple sleep (see below)


<pre>
<pre>
from win32com.client import Dispatch


from win32com.client import Dispatch
import time  
import time  


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<pre>
<pre>
from win32com.client import Dispatch  
from win32com.client import Dispatch  
import time  
import time  


Latest revision as of 12:37, 14 December 2009

Examples

Here is a simple Python-based COM automation 'Hello World' script. 

import win32com.client
from win32com.client import constants as c

excel = win32com.client.Dispatch("Excel.Application")
book = excel.Workbooks.Add()
sheet = book.Worksheets(1)
sheet.Range("A1").Value = "Hello World!"
sheet.Range("A2").Value = str(Application.SIFilter(None, c.siObjectFilter))
book.SaveAs("c:\simple_example.xls")

sheet = None
book = None
excel.Quit()
excel = None

This will create an Excel spreadsheet in the root C:\ drive, called 'simple_example.xls'. 

def index():
	import win32com.client
	a=win32com.client.Dispatch('Excel.Application')
	a.Visible = 1
	a.Workbooks.Add()
	a.ActiveSheet.Cells(1,1).Value = 'aha'
	return "aha"

if __name__ == "__main__":
	print index()


COM Automation of Internet Explorer

A couple of examples using either a wait function or a simple sleep for synchronisation. 

from win32com.client import Dispatch 

import time 

ie = Dispatch("InternetExplorer.Application") 

ie.Navigate("https://secure.authorize.net/") 
# ie.Visible = True 

time.sleep(1) 
doc = ie.Document 

print doc.body.innerHTML

or with a wait function 

from win32com.client import Dispatch 

import time 

def wait(ie): 
    while ie.Busy: 
        time.sleep(0.5) 
    while ie.Document.readyState != "complete": 
        time.sleep(0.5) 

ie = Dispatch("InternetExplorer.Application") 

ie.Navigate("https://secure.authorize.net/") 
# ie.Visible = True 

wait(ie) 

doc = ie.Document 

print doc.body.innerHTML
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