Switch to the Python version of mkhowto.
diff --git a/Doc/html/Makefile b/Doc/html/Makefile
index df07dd4..2fa13ac 100644
--- a/Doc/html/Makefile
+++ b/Doc/html/Makefile
@@ -67,7 +67,7 @@
 	$(MKHTML) lib $(L2HARGS)
 
 mac/mac.html:  $(MACFILES) $(BUILDINDEX)
-	$(TOOLSDIR)/mkhowto.sh --address '<hr>Send comments to <a href="mailto:python-docs@python.org">python-docs@python.org</a>.' --html $(TOPDIR)/mac/mac.tex
+	$(TOOLSDIR)/mkhowto --address '<hr>Send comments to <a href="mailto:python-docs@python.org">python-docs@python.org</a>.' --html $(TOPDIR)/mac/mac.tex
 
 ref/ref.html:  $(PAPERDIR)/ref.aux $(BUILDINDEX)
 	$(MKHTML) ref $(L2HARGS)
diff --git a/Doc/paper-letter/Makefile b/Doc/paper-letter/Makefile
index 7f5f27c..85438c9 100644
--- a/Doc/paper-letter/Makefile
+++ b/Doc/paper-letter/Makefile
@@ -12,7 +12,7 @@
 TEXINPUTS=	.:../texinputs:
 
 MKDVI=		TEXINPUTS=$(TEXINPUTS) $(TOOLSDIR)/mkdvi.sh
-MKHOWTO=	$(TOOLSDIR)/mkhowto.sh --keep
+MKHOWTO=	$(TOOLSDIR)/mkhowto --keep
 MKPDF=		TEXINPUTS=$(TEXINPUTS) $(TOOLSDIR)/mkdvi.sh --pdf
 
 
@@ -54,8 +54,8 @@
 $(MANDVIFILES):	  $(MANSTYLES)
 $(MANPDFFILES):	  $(MANSTYLES)
 
-$(HOWTODVIFILES): ../tools/mkhowto.sh $(HOWTOSTYLES)
-$(HOWTOPDFFILES): ../tools/mkhowto.sh $(HOWTOSTYLES)
+$(HOWTODVIFILES): ../tools/mkhowto $(HOWTOSTYLES)
+$(HOWTOPDFFILES): ../tools/mkhowto $(HOWTOSTYLES)
 
 
 # Rules to build PostScript and PDF formats