Account for source being a string

.pre-commit-config.yaml

@@ -48,8 +48,7 @@ repos:
     hooks:
       - id: mypy
         args: [--no-strict-optional, --ignore-missing-imports]
-        additional_dependencies:
-          ["types-pkg-resources", "types-requests", "types-attrs"]
+        additional_dependencies: ["types-requests", "types-attrs"]
         exclude: |
           (?x)(
               test_notebooks.py

nbproject/dev/_check_last_cell.py

@@ -8,14 +8,13 @@ def check_last_cell(nb: Notebook, calling_statement: str) -> bool:
         nb: Notebook content.
         calling_statement: The statement that calls this function.
     """
-    last_code_cell = None
+    last_code_cell_source = None
     for cell in nb.cells:
-        if cell["cell_type"] == "code" and cell["source"] != []:
-            last_code_cell = cell
+        cell_source = "".join(cell["source"])
+        if cell["cell_type"] == "code" and cell_source != "":
+            last_code_cell_source = cell_source
 
-    if last_code_cell is not None and calling_statement in "".join(
-        last_code_cell["source"]
-    ):
+    if last_code_cell_source is not None and calling_statement in last_code_cell_source:
         return True
     else:
         return False

nbproject/dev/_consecutiveness.py

@@ -24,12 +24,11 @@ def check_consecutiveness(nb: Notebook, calling_statement: str = None) -> bool:
     ccount = 0  # need to initialize because notebook might note have code cells
     # and below, we check if ccount is None
     for cell in cells:
-        if cell["cell_type"] != "code" or cell["source"] == []:
+        cell_source = "".join(cell["source"])
+        if cell["cell_type"] != "code" or cell_source == "":
             continue
 
-        if calling_statement is not None and calling_statement in "".join(
-            cell["source"]
-        ):
+        if calling_statement is not None and calling_statement in cell_source:
             continue
 
         ccount = cell["execution_count"]

nbproject/dev/_meta_live.py

@@ -18,7 +18,7 @@ def get_title(nb: Notebook) -> Optional[str]:
         # only consider markdown
         if cell["cell_type"] == "markdown":
             # grab source
-            text = cell["source"][0]
+            text = "".join(cell["source"])
             # loop through lines
             for line in text.split("\n"):
                 # if finding a level-1 heading, consider it a title

nbproject/dev/_meta_store.py

@@ -31,10 +31,12 @@ def _set_execution_count(calling_statement: str, notebook: Notebook):
 
     prev = 0
     for cell in cells:
-        if cell["cell_type"] != "code" or cell["source"] == []:
+        cell_source = "".join(cell["source"])
+
+        if cell["cell_type"] != "code" or cell_source == "":
             continue
 
-        if calling_statement in "".join(cell["source"]):
+        if calling_statement in cell_source:
             cell["execution_count"] = prev + 1
 
         ccount = cell["execution_count"]