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-rw-r--r--stwcs/wcsutil/hstwcs.py8
1 files changed, 5 insertions, 3 deletions
diff --git a/stwcs/wcsutil/hstwcs.py b/stwcs/wcsutil/hstwcs.py
index 81e1432..27f6467 100644
--- a/stwcs/wcsutil/hstwcs.py
+++ b/stwcs/wcsutil/hstwcs.py
@@ -3,15 +3,17 @@ from __future__ import absolute_import, division, print_function
import os
from astropy.wcs import WCS
from astropy.io import fits
-from stwcs.distortion import models, coeff_converter
+from ..distortion import models, coeff_converter
import numpy as np
from stsci.tools import fileutil
-from . import altwcs
+from . import pc2cd
from . import getinput
from . import instruments
from .mappings import inst_mappings, ins_spec_kw
+__all__ = ['HSTWCS']
+
def extract_rootname(kwvalue, suffix=""):
""" Returns the rootname from a full reference filename
@@ -384,7 +386,7 @@ class HSTWCS(WCS):
if not wcskey:
wcskey = self.wcs.alt
if self.wcs.has_cd():
- h = altwcs.pc2cd(h, key=wcskey)
+ h = pc2cd(h, key=wcskey)
if 'wcsname' not in h:
if self.idctab is not None: