Fix str/bytes and leftover-py2 defects across the plugin, several on live
decryption paths:
- erdr2pml.py: getText() footnote/sidebar handling mixed a bytes
accumulator with str literals and called ord() on a bytes element,
crashing on eReader/.pdb books that contain footnotes or sidebars.
- ion.py: readdecimal() did `[ord(x) for x in self.read(...)]` over
bytes (ord(int)), crashing KFX decryption on Ion DECIMAL values;
printlob() had the same ord()-over-bytes in its debug path.
- zipfilerugged.py: `isinstance(file, unicode)` raised NameError when a
file-like object (not a path string) was passed to the ZipFile.
- utilities.py: SafeUnbuffered.write referenced the undefined `unicode`
(same fix already applied to the obok copy).
- ineptpdf.py: ord(bookkey[0]) over an int in an error-diagnostic print.
- epubfontdecrypt.py: removed a dead py2 itertools.izip fallback.
- convert2xml.py: escapestr did bytes.replace(str, ...).
- kgenpids.py: decode() built a str result then += bytes.
Cleanups from the earlier shim removal: drop now-unused `import sys`
(alfcrypto, utilities, kgenpids); unicode_argv returns list(sys.argv) so
callers can't mutate the process-global sys.argv.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The plugins target calibre 5/6 (Python 3) and the Poetry environment
pins Python >=3.8, so the Python 2 fallbacks are dead code. This removes
them throughout both plugins (behaviour on Python 3 is unchanged):
- Drop all `from __future__` imports.
- Collapse `if sys.version_info[0] == 2: ... else: ...` blocks to their
Python 3 branch (ineptpdf, mobidedrm, kindlekey, kgenpids, alfcrypto,
erdr2pml, ineptepub, obok, and the various unpad() helpers, etc.).
- Replace `_winreg` import fallbacks with plain `import winreg`, and
delete the py2-only adobekey_winreg_unicode module (now unreferenced).
- Drop py2 name shims: `unicode`/`unichr`, `.iteritems()`,
`from StringIO import StringIO`, `htmlentitydefs` fallback, and the
Windows CommandLineToArgvW dance in unicode_argv (py3 sys.argv is
already Unicode on every platform).
- Remove the "Calibre < 5" (py2) bugfix block from the compat header.
Verified: every .py file in both plugins still byte-compiles.
Scope: the maintained DeDRM_plugin and Obok_plugin only. The archival
standalone scripts under Other_Tools/ are left as historical snapshots.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This allows us to clean up the code a lot.
On Windows, it isn't installed by default and
most of the time not be found at all.
On M1 Macs, the kernel will kill the process instead.
Closes#33.
Now the plugin ZIP file (DeDRM_plugin.zip) can be run with a normal
Python interpreter as if it were a Python file (try
`python3 DeDRM_plugin.zip --help`). This way I can begin building a
standalone version (that can run without Calibre) without having to
duplicate a ton of code.
THIS IS ON THE MASTER BRANCH. The Master branch will be Python 3.0 from now on. While Python 2.7 support will not be deliberately broken, all efforts should now focus on Python 3.0 compatibility.
I can see a lot of work has been done. There's more to do. I've bumped the version number of everything I came across to the next major number for Python 3.0 compatibility indication.
Thanks everyone. I hope to update here at least once a week until we have a stable 7.0 release for calibre 5.0
JMR-devandClaude Opus 4.8