Merge pull request #104 from a-r-j/patch-0.4.1

update for 3.7 compat

Author: rasbt

.appveyor.yml

@@ -2,7 +2,7 @@ build: false
 
 environment:
   matrix:
-    - PYTHON_VERSION: 3.9
+    - PYTHON_VERSION: 3.7
       MINICONDA: C:\Miniconda3
 
 init:

biopandas/__init__.py

@@ -24,5 +24,5 @@
 # 'X.Y.dev0' is the canonical version of 'X.Y.dev'
 #
 
-__version__ = "0.4.0"
+__version__ = "0.4.1"
 __author__ = "Sebastian Raschka <[email protected]>"

biopandas/pdb/pandas_pdb.py

@@ -366,7 +366,8 @@ def _parse_header_code(self):
             header = self.df["OTHERS"][self.df["OTHERS"]["record_name"] == "HEADER"]
             if not header.empty:
                 header = header["entry"].values[0]
-                if s := header.split():
+                s = header.split()
+                if s:
                     code = s[-1].lower()
         return header, code
 

docs/CHANGELOG.md

@@ -4,6 +4,19 @@ The CHANGELOG for the current development version is available at
 [https://github.com/rasbt/biopandas/blob/main/docs/sources/CHANGELOG.md](https://github.com/rasbt/biopandas/blob/main/docs/sources/CHANGELOG.md).
 
 
+
+### 0.4.1 (05-13-2022)
+
+##### Downloads
+
+- [Source code (zip)](https://github.com/rasbt/biopandas/archive/v0.4.1.zip)
+- [Source code (tar.gz)](https://github.com/rasbt/biopandas/archive/v0.4.1.tar.gz)
+
+##### Changes
+
+- Remove walrus operator for Python 3.7 compatibility.
+
+
 ### 0.4.0 (05-11-2022)
 
 ##### Downloads
@@ -307,4 +320,4 @@ The CHANGELOG for the current development version is available at
 
 ### 0.1.2 (2015-11-23)
 
-- First Release.
+- First Release.