[rpms/calibre] rawhide: Drop bundled Cryptodome->Crypto import redirect; require python3-pycryptodomex

[rpms/calibre] rawhide: Drop bundled Cryptodome->Crypto import redirect; require python3-pycryptodomex

[Florian Wallner]

            A new commit has been pushed.

            Repo   : rpms/calibre
            Branch : rawhide
            Commit : 67c802a0b69ba2e50f509b1e6c8a12a489504537
            Author : Florian Wallner <florian.wallner@proton.me>
            Date   : 2026-09-09T17:10:22+02:00
            Stats  : +18/-0 in 2 file(s)
            URL    : https://src.fedoraproject.org/rpms/calibre/c/67c802a0b69ba2e50f509b1e6c8a12a489504537?branch=rawhide

            Log:
            Drop bundled Cryptodome->Crypto import redirect; require python3-pycryptodomex

calibre's DeVendor import hook redirected all Cryptodome imports to the
Crypto namespace, assuming the bundled pycryptodome. On Fedora that
namespace is provided by the obsolete python3-crypto (PyCrypto 2.6.1),
which lacks modern APIs such as RSA.import_key -- breaking py7zr and
crypto-using plugins. Patch out the redirect so Cryptodome resolves to
the system python3-pycryptodomex, and add it as a (Build)Requires.

Resolves: rhbz#2527047

---
diff --git a/calibre-cryptodome-unbundle.patch b/calibre-cryptodome-unbundle.patch
new file mode 100644
index 0000000..ac20467
--- /dev/null
+++ b/calibre-cryptodome-unbundle.patch
@@ -0,0 +1,13 @@
+--- a/src/calibre/constants.py
++++ b/src/calibre/constants.py
+@@ -214,10 +214,6 @@
+             if fullname == 'PyQt5':
+                 return ModuleSpec(fullname, DeVendorLoader('qt'))
+             return ModuleSpec(fullname, DeVendorLoader('qt.webengine' if 'QWebEngine' in fullname else 'qt.core'))
+-        if fullname.startswith('Cryptodome'):
+-            # this is needed for py7zr which uses pycryptodomex instead of
+-            # pycryptodome for some reason
+-            return ModuleSpec(fullname, DeVendorLoader(fullname.replace('dome', '', 1)))
+ 
+ 
+ class ExtensionsPackageLoader(Loader):

diff --git a/calibre.spec b/calibre.spec
index fc032f3..e5d5223 100644
--- a/calibre.spec
+++ b/calibre.spec
@@ -25,6 +25,9 @@ Patch:          calibre-9.13.0-feedparser-downgrade.patch
 # fix openssl test
 Patch:          calibre-9.12.0-openssl.patch
 
+# use system pycryptodomex instead of the bundled Cryptodome->Crypto redirect
+Patch:          calibre-cryptodome-unbundle.patch
+
 ExclusiveArch:  %{qt6_qtwebengine_arches}
 
 BuildRequires:  python3-devel
@@ -103,6 +106,7 @@ BuildRequires:  python3-pyqt6-webengine-devel
 BuildRequires:  python3-fonttools
 BuildRequires:  python3-zstd
 BuildRequires:  python3dist(xxhash)
+BuildRequires:  python3dist(pycryptodomex)
 BuildRequires:  pykakasi
 BuildRequires:  mesa-libEGL
 BuildRequires:  python3-tzlocal
@@ -166,6 +170,7 @@ Requires:       python3-jeepney
 Requires:       qt6-qtmultimedia
 Requires:       (qt6-qtspeech-flite or qt6-qtspeech-speechd)
 Requires:       python3-xxhash
+Requires:       python3dist(pycryptodomex)
 Recommends:     python3dist(zeroconf)
 
 %description