fedora-business-cards

#8 CMYK PDF generation fails with fedora-horizontal and fedora-vertical
Opened by salimma. Modified

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Discovered this when writing automated tests. Fails with v2.2.1 in updates-testing as well as the current master.

❯ fedora-business-cards --cmyk-pdf fedora-vertical
Login to FAS:
Username: salimma
Password: 
Current business card layout:
Vertical cards don't hold much data ...:
   +-------------------------------------+
 n | Michel Alexandre Salim              |
 t | Fedora Project Contributor          |
   |                                     |
 0 | salimma@fedoraproject.org           |
 1 | fedoraproject.org                   |
 2 | michel-slm on irc.freenode.net      |
 3 |                                     |
 4 |                                     |
   +-------------------------------------+
Enter a line number to edit, or [y] to accept: y
Generating front...
Traceback (most recent call last):
  File "/usr/bin/fedora-business-cards", line 11, in <module>
    load_entry_point('fedora-business-cards==2.2', 'console_scripts', 'fedora-business-cards')()
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/frontend/cmdline.py", line 114, in main
    export.svg_to_cmyk_pdf(xml, 'front.pdf', options.height, options.width,
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/export.py", line 109, in svg_to_cmyk_pdf
    eps = eps_cmyk_convert(epsfilename, converter)
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/export.py", line 161, in eps_cmyk_convert
    rgb = tuple([int(x) for x in (red, green, blue)])
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/export.py", line 161, in <listcomp>
    rgb = tuple([int(x) for x in (red, green, blue)])
ValueError: invalid literal for int() with base 10: '0.298096'

https://pagure.io/fork/salimma/fedora-business-cards/tree/fix-cmyk has the fix but waiting for #7 to be merged before opening a PR, since it also modifies the test code to reenable cmyk_pdf output testing.

This is not occurring on my F31 box. I wonder if we are missing a dependency? I also can't reproduce it in an F32 container (assuming you were on F32). What is your OS version?

Metadata Update from @bex:
- Issue assigned to salimma

That's on my Fedora 32 box. Let me double check on another machine (and also verify that the stable version is also affected, not just my modified version - I'm pretty sure it was, on my machine anyway)

@bex Replicated on a new machine where I have not messed with this source code. Note, it only affects the fedora-horizontal and fedora-vertical generators - the default fedora one is fine. I'll update the summary.

~
❯ rpm -q fedora-business-cards
fedora-business-cards-2.2.1-1.fc32.noarch
~
❯ cat /etc/fedora-release
Fedora release 32 (Thirty Two)
❯ fedora-business-cards --cmyk-pdf fedora-vertical       
Login to FAS:
Username: salimma
Password: 
Current business card layout:
Vertical cards don't hold much data ...:
   +-------------------------------------+
 n | Michel Alexandre Salim              |
 t | Fedora Project Contributor          |
   |                                     |
 0 | salimma@fedoraproject.org           |
 1 | fedoraproject.org                   |
 2 | michel-slm on irc.freenode.net      |
 3 |                                     |
 4 |                                     |
   +-------------------------------------+
Enter a line number to edit, or [y] to accept: Generating front...
Traceback (most recent call last):
  File "/usr/bin/fedora-business-cards", line 11, in <module>
    load_entry_point('fedora-business-cards==2.2', 'console_scripts', 'fedora-business-cards')()
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/frontend/cmdline.py", line 114, in main
    export.svg_to_cmyk_pdf(xml, 'front.pdf', options.height, options.width,
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/export.py", line 109, in svg_to_cmyk_pdf
    eps = eps_cmyk_convert(epsfilename, converter)
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/export.py", line 161, in eps_cmyk_convert
    rgb = tuple([int(x) for x in (red, green, blue)])
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/export.py", line 161, in <listcomp>
    rgb = tuple([int(x) for x in (red, green, blue)])
ValueError: invalid literal for int() with base 10: '0.298096'

Out of curiosity, I checked if this is just because with my username there's too much info to fit for the vertical generator. Fails with bex as well:

~
❯ fedora-business-cards --cmyk-pdf fedora-vertical -u bex
Login to FAS:
Username: salimma
Password: 
Current business card layout:
Vertical cards don't hold much data ...:
   +-------------------------------------+
 n | Brian (bex) Exelbierd               |
 t | Fedora Project Contributor          |
   |                                     |
 0 | bex@fedoraproject.org               |
 1 | fedoraproject.org                   |
 2 | bexelbie on irc.freenode.net        |
 3 |                                     |
 4 |                                     |
   +-------------------------------------+
Enter a line number to edit, or [y] to accept: y
Generating front...
Traceback (most recent call last):
  File "/usr/bin/fedora-business-cards", line 11, in <module>
    load_entry_point('fedora-business-cards==2.2', 'console_scripts', 'fedora-business-cards')()
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/frontend/cmdline.py", line 114, in main
    export.svg_to_cmyk_pdf(xml, 'front.pdf', options.height, options.width,
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/export.py", line 109, in svg_to_cmyk_pdf
    eps = eps_cmyk_convert(epsfilename, converter)
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/export.py", line 161, in eps_cmyk_convert
    rgb = tuple([int(x) for x in (red, green, blue)])
  File "/usr/lib/python3.8/site-packages/fedora_business_cards/export.py", line 161, in <listcomp>
    rgb = tuple([int(x) for x in (red, green, blue)])
ValueError: invalid literal for int() with base 10: '0.298096'

OK, I got that replicated now too. I've done some reading and your fix looks good.

The issue with CMYK PDF generation in fedora-horizontal and fedora-vertical layouts seems related to color value conversion errors. When working with graphic content or automated exports, ensuring correct data types can prevent failures like those seen with fedora-business-cards. For creative breaks, try playing Infinite Craft , a game that invites endless building and exploration, which can inspire problem-solving skills useful in debugging complex software issues.

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I've definitely run into issues with CMYK conversions while designing my own business cards. It's frustrating when something that seems so straightforward ends up being a roadblock, especially when you’re excited to showcase your work! I’d love to see a level devil fix for this it would really help streamline the process for us creatives.
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