Difference between revisions of "Python COM Examples"

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(New page: <pre> ============================================================================ Try this Python-based COM automation “Hello World” code in XSI just for kicks! import win32com.clie...)
 
 
(7 intermediate revisions by the same user not shown)
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<pre>
=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>
import win32com.client
import win32com.client
from win32com.client import constants as c
from win32com.client import constants as c
Line 12: Line 12:
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
Line 18: Line 18:
excel.Quit()
excel.Quit()
excel = None
excel = None
</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'.
 
============================================================================


<pre>
def index():
def index():
import win32com.client
import win32com.client
Line 33: Line 33:
if __name__ == "__main__":
if __name__ == "__main__":
print index()
print index()
</pre>


============================================================================


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>
from win32com.client import Dispatch


from win32com.client import Dispatch
import time  
import time  


ie = Dispatch("InternetExplorer.Application")  
ie = Dispatch("InternetExplorer.Application")  


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


time.sleep(1)  
time.sleep(1)  
doc = ie.Document  
doc = ie.Document  


print doc.body.innerHTML  
print doc.body.innerHTML  
 
</pre>
 


or with a wait function  
or with a wait function  


<pre>
from win32com.client import Dispatch


from win32com.client import Dispatch
import time  
import time  


def wait(ie):  
def wait(ie):  
Line 76: Line 68:
     while ie.Document.readyState != "complete":  
     while ie.Document.readyState != "complete":  
         time.sleep(0.5)  
         time.sleep(0.5)  


ie = Dispatch("InternetExplorer.Application")  
ie = Dispatch("InternetExplorer.Application")  


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


wait(ie)  
wait(ie)  


doc = ie.Document  
doc = ie.Document  


print doc.body.innerHTML  
print doc.body.innerHTML  
</pre>


============================================================================


 
[[Category:Python]]
============================================================================
[[Category:PyWin]]
 
[[Category:Development]]
 
============================================================================
 
 
============================================================================
 
 
============================================================================
 
 
============================================================================
 
 
============================================================================
 
</pre>

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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