[reportlab-users] Reportlab and IronPython

[Benoit Dupraz]

Hi Robin,

Someone give me a solution in order to solve this problem.


Changing the format() method from PDFFile class in pdfdoc.py from :

   def format(self, document):
       strings = map(str, self.strings) # final conversion, in case
of lazy objects
       return string.join(strings, "")

To:

   def format(self, document):
       # final conversion, in case of lazy objects
       strings = []
       for s in self.strings:
           if not isinstance(s, types.StringTypes):
               strings.append(str(s))
           else:
               strings.append(s)
       return "".join(strings)

After that I still have an error (see attached file) that I debug by my own.
The problem append with unicode2T1 function from _rl_accel.pyd

in pdf metrics we have this try except bloc :

try:
    from _rl_accel import unicode2T1 #bug sur ironpython?
    print 1
except ImportError:
    print 2
    unicode2T1 = _py_unicode2T1

If i write :

try:
    from _rl_accel import unicode2T1 #bug sur ironpython?
    print 1
except ImportError:
    print 2
    unicode2T1 = _py_unicode2T1
unicode2T1 = _py_unicode2T1

I finally get my PDF !

So I thank you for your help !

Benoit Dupraz
+41 (0)78 909 05 94



2010/9/15 Robin Becker <robin at reportlab.com>


> I suspect part of your problem may be that you're using latin1 as an

> encoding for the python.

>

>

> We have made an assumption that all the strings we'll see in the print

> path, ie things that end up on the pdf canvas, will either be unicode

> strings or will be utf8 encoded byte strings. I see the error refers to

> u'\x93', but I don't think that's a legal character.

>

> I did try out IronPython some time ago, but at that time I was unable to

> get it running. I don't think that was because of any of our extensions

> though.

>

> It may be that you can do without the extensions as most of the code will

> run happily (if a bit slower) without them.

>

> There are three main C extensions,

>

> _rl_accel.pyd which provides fast operations for some of the reportlab

> internal operations. If omitted nothing serious should happen.

>

> _renderPM.pyd which implements a canvas like object for drawing

> charts/lines etc etc.

>

> sgmlop.pyd an sgml type parser to be used with paragraph tags; if omitted

> the paragraph xml may become a bit more xml like ie things like naked

> ampersands will not pass without error.

>

> In addition when we use images other than jpg we need to use PIL the Python

> Imaging Library to do conversions of various bitmap formats into simple RGB.

>

>

>

>

>

> On 15/09/2010 13:59, Benoit Dupraz wrote:

>

>> Hello Robin,

>>

>> I'm writing this mail because I read that you help someone having troubles

>> with reportlab like me.

>> Here is my story :

>>

>> I'm a french beginner dev and I would like to use Reporlab under

>> IronPython

>> I'm using Reportlab 2.4 for Python 2.6 and IronPython 2.6.

>> I've done a basic installation of reportlab (with .exe) as it is explain

>> on

>> this page (Prerequisites too..) :

>> https://www.reportlab.com/software/installation/

>> In order to use Reportlab with IronPython, I'm using ironclad (2.6 or 2.6

>> .NET 4.0 Experimental, both have same errors)

>> If I try to run this code :

>> # -*- coding:Latin-1 -*-

>> import ironclad

>> import sys

>> sys.path.append('C:\\Python26\\DLLs')

>> sys.path.append('C:\\Python26\\Lib')

>> sys.path.append('C:\\Python26\\Lib\\site-packages')

>> import pyRXP

>>

>> import zlib

>> import reportlab

>> from reportlab.pdfgen import canvas

>> c = canvas.Canvas('test.pdf')

>> c.drawString(100,750, "qwertzuiop".encode('ascii'))

>> c.save()

>>

>> Here are the errors : see attached file.

>> Do you have  a solution to my problem ? I've been searching on the net and

>> I

>> read many times that it should works (maybe is there a better way than

>> using

>> ironclad...)

>>

>> Thank you, and I hope you can help me solving this problem

>>

> ...........

> --

> Robin Becker

>

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