fix: validate python expressions (#26835) (#26856)

(cherry picked from commit 07337d5c78)

Co-authored-by: Ankush <ankush@iwebnotes.com>

erpnext/accounts/doctype/pricing_rule/pricing_rule.json

@@ -558,7 +558,8 @@
    "description": "Simple Python Expression, Example: territory != 'All Territories'",
    "fieldname": "condition",
    "fieldtype": "Code",
-   "label": "Condition"
+   "label": "Condition",
+   "options": "PythonExpression"
   },
   {
    "fieldname": "column_break_42",
@@ -575,7 +576,7 @@
  "icon": "fa fa-gift",
  "idx": 1,
  "links": [],
- "modified": "2021-03-06 22:01:24.840422",
+ "modified": "2021-08-06 15:10:04.219321",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Pricing Rule",

erpnext/stock/doctype/item_quality_inspection_parameter/item_quality_inspection_parameter.json

@@ -47,7 +47,8 @@
    "description": "Simple Python formula applied on Reading fields.<br> Numeric eg. 1: <b>reading_1 &gt; 0.2 and reading_1 &lt; 0.5</b><br>\nNumeric eg. 2: <b>mean &gt; 3.5</b> (mean of populated fields)<br>\nValue based eg.:  <b>reading_value in (\"A\", \"B\", \"C\")</b>",
    "fieldname": "acceptance_formula",
    "fieldtype": "Code",
-   "label": "Acceptance Criteria Formula"
+   "label": "Acceptance Criteria Formula",
+   "options": "PythonExpression"
   },
   {
    "default": "0",
@@ -89,7 +90,7 @@
  "idx": 1,
  "istable": 1,
  "links": [],
- "modified": "2021-02-04 18:50:02.056173",
+ "modified": "2021-08-06 15:08:20.911338",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Item Quality Inspection Parameter",