From bf6778695b5a02590f535c2280e2b38dfe425d07 Mon Sep 17 00:00:00 2001
From: Bennett Meares <38741257+bmeares@users.noreply.github.com>
Date: Fri, 14 Oct 2022 00:34:27 -0400
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20v1.3.2=20(#79)=20Fixed=20an=20en?=
 =?UTF-8?q?vironment=20issue=20on=20Ubuntu=2018.04.?=
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* Change mutable default argument to `None`.

* Set to empty list if `keys` is `None`.

* Return if the given config is not a dictionary.

* Ensure `parsed_config` is a dictionary.

* Bump to version 1.3.2
---
 meerschaum/config/_read_config.py | 8 ++++++--
 meerschaum/config/_version.py     | 2 +-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/meerschaum/config/_read_config.py b/meerschaum/config/_read_config.py
index 2306d7a9..17a6dd07 100644
--- a/meerschaum/config/_read_config.py
+++ b/meerschaum/config/_read_config.py
@@ -244,7 +244,11 @@ def search_and_substitute_config(
     """
 
     _links = []
-    def _find_symlinks(d, _keys: List[str] = []):
+    def _find_symlinks(d, _keys: Optional[List[str]] = None):
+        if _keys is None:
+            _keys = []
+        if not isinstance(d, dict):
+            return
         for k, v in d.items():
             if isinstance(v, dict):
                 _find_symlinks(v, _keys + [k])
@@ -345,7 +349,7 @@ def _find_symlinks(d, _keys: List[str] = []):
             haystack = haystack.replace(pattern, str(value))
 
     ### parse back into dict
-    parsed_config = json.loads(haystack)
+    parsed_config = json.loads(haystack) or {}
 
     symlinks = {}
     if keep_symlinks:
diff --git a/meerschaum/config/_version.py b/meerschaum/config/_version.py
index 4178837f..c8073270 100644
--- a/meerschaum/config/_version.py
+++ b/meerschaum/config/_version.py
@@ -2,4 +2,4 @@
 Specify the Meerschaum release version.
 """
 
-__version__ = "1.3.1"
+__version__ = "1.3.2"