RF: Unconditionally recognize .zstd extension

Author: effigies

nibabel/analyze.py

@@ -95,7 +95,6 @@
 from .fileholders import copy_file_map
 from .batteryrunners import Report
 from .arrayproxy import ArrayProxy
-from .openers import HAVE_ZSTD
 
 # Sub-parts of standard analyze header from
 # Mayo dbh.h file
@@ -907,9 +906,7 @@ class AnalyzeImage(SpatialImage):
     _meta_sniff_len = header_class.sizeof_hdr
     files_types = (('image', '.img'), ('header', '.hdr'))
     valid_exts = ('.img', '.hdr')
-    _compressed_suffixes = ('.gz', '.bz2')
-    if HAVE_ZSTD:  # If pyzstd installed., add .zst suffix
-        _compressed_suffixes = (*_compressed_suffixes, '.zst')
+    _compressed_suffixes = ('.gz', '.bz2', '.zst')
 
     makeable = True
     rw = True

nibabel/brikhead.py

@@ -43,7 +43,6 @@
     ImageDataError
 )
 from .volumeutils import Recoder
-from .openers import HAVE_ZSTD
 
 # used for doc-tests
 filepath = os.path.dirname(os.path.realpath(__file__))
@@ -491,9 +490,7 @@ class AFNIImage(SpatialImage):
     header_class = AFNIHeader
     valid_exts = ('.brik', '.head')
     files_types = (('image', '.brik'), ('header', '.head'))
-    _compressed_suffixes = ('.gz', '.bz2', '.Z')
-    if HAVE_ZSTD:  # If pyzstd installed., add .zst suffix
-        _compressed_suffixes = (*_compressed_suffixes, '.zst')
+    _compressed_suffixes = ('.gz', '.bz2', '.Z', '.zst')
     makeable = False
     rw = False
     ImageArrayProxy = AFNIArrayProxy

nibabel/loadsave.py

@@ -13,15 +13,13 @@
 import numpy as np
 
 from .filename_parser import splitext_addext, _stringify_path
-from .openers import ImageOpener, HAVE_ZSTD
+from .openers import ImageOpener
 from .filebasedimages import ImageFileError
 from .imageclasses import all_image_classes
 from .arrayproxy import is_proxy
 from .deprecated import deprecate_with_version
 
-_compressed_suffixes = ('.gz', '.bz2')
-if HAVE_ZSTD:  # If pyzstd installed., add .zst suffix
-    _compressed_suffixes = (*_compressed_suffixes, '.zst')
+_compressed_suffixes = ('.gz', '.bz2', '.zst')
 
 
 def load(filename, **kwargs):

nibabel/minc1.py

@@ -16,7 +16,6 @@
 
 from .spatialimages import SpatialHeader, SpatialImage
 from .fileslice import canonical_slicers
-from .openers import HAVE_ZSTD
 
 _dt_dict = {
     ('b', 'unsigned'): np.uint8,
@@ -317,9 +316,7 @@ class Minc1Image(SpatialImage):
     _meta_sniff_len = 4
     valid_exts = ('.mnc',)
     files_types = (('image', '.mnc'),)
-    _compressed_suffixes = ('.gz', '.bz2')
-    if HAVE_ZSTD:  # If pyzstd installed., add .zst suffix
-        _compressed_suffixes = (*_compressed_suffixes, '.zst')
+    _compressed_suffixes = ('.gz', '.bz2', '.zst')
 
     makeable = True
     rw = False