python3-alembic: Upgrade 1.6.2 -> 1.6.4

Upgrade to release 1.6.4:

- Fixed regression caused by just fixed bug that scaled back the
  filter for unique=True/index=True too far such that these
  directives no longer worked for the op.create_table() op, this
  has been fixed.
- Fixed 1.6-series regression where UniqueConstraint and to a
  lesser extent Index objects would be doubled up in the generated
  model when the unique=True / index=True flags were used.
- Fixed a bug where paths defined in post-write hook options would
  be wrongly escaped in non posix environment (Windows).
- Fixed regression where a revision file that contained its own
  down revision as a dependency would cause an endless loop in the
  traversal logic.

Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com>

meta-python/recipes-devtools/python/python3-alembic_1.6.4.bb

@@ -0,0 +1,17 @@
+DESCRIPTION = "A database migration tool for SQLAlchemy"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=c4ece55266dcdd02ce165b1ee0e490bb"
+
+inherit pypi setuptools3
+
+SRC_URI[sha256sum] = "becb572c6701c90ca249f97fc1ae231468cc9516df367a350901eeb9310a8d43"
+
+PYPI_PACKAGE = "alembic"
+
+RDEPENDS_${PN} += "\
+    ${PYTHON_PN}-dateutil \
+    ${PYTHON_PN}-editor \
+    ${PYTHON_PN}-mako \
+    ${PYTHON_PN}-sqlalchemy \
+    ${PYTHON_PN}-misc \
+"