debian/changelog

@@ -14,6 +14,7 @@ bowtie2 (2.3.5.1-1) UNRELEASED; urgency=medium
   * Use 2to3 to port to Python3
     Closes: #936233
   * Remove obsolete fields Name, Contact from debian/upstream/metadata.
+  * Build-Depends: libfile-which-perl
 
  -- Andreas Tille <tille@debian.org>  Wed, 04 Sep 2019 15:18:29 +0200
 

debian/control

@@ -7,10 +7,11 @@ Priority: optional
 Build-Depends: debhelper-compat (= 12),
                help2man,
                libtbb-dev,
-               python,
+               python3,
                liblocal-lib-perl,
                libtest-deep-perl,
                libclone-perl,
+               libfile-which-perl,
                zlib1g-dev
 Standards-Version: 4.4.0
 Vcs-Browser: https://salsa.debian.org/med-team/bowtie2
@@ -19,7 +20,7 @@ Homepage: http://bowtie-bio.sourceforge.net/bowtie2
 
 Package: bowtie2
 Architecture: amd64 kfreebsd-amd64
-Depends: python,
+Depends: python3,
          ${misc:Depends},
          ${shlibs:Depends}
 Suggests: bowtie2-examples