add line numbers, make it one column by default

TODO.md

@@ -1,11 +1,13 @@
 ## TODO
-- silent mode by default when doing PDF
-- add nice spacing and typography for easy reading
+- make 
 - pdf options
-  - problem numbers [true]
-  - number of columns [auto]
   - include column labels
   - print
+  - make it prettier
+    - different font, using nice fonts if they're available on someone's system
+    - better spacing
+    - [use different sized fonts for different parts](https://unix.stackexchange.com/a/500365)
+- arithmetic
     - addition
     - subtraction
     - mult? div?

app/main.py

@@ -13,8 +13,8 @@ from app.pdf import make_pdf
 @click.option("--silent", default=False, is_flag=True)
 @click.option("--include-answers", default=True, is_flag=True)
 @click.option("--output-filepath")
-@click.option("--num-columns", default=4)
-@click.option("--font-size", default=12)
+@click.option("--num-columns", default=1)
+@click.option("--font-size", default=26)
 def main(
     bits: int,
     num_problems: int,
@@ -22,17 +22,14 @@ def main(
     silent: bool = False,
     include_answers: bool = True,
     output_filepath: str = None,
-    num_columns: int = 4,
-    font_size: int = 12,
+    num_columns: int = 1,
+    font_size: int = 26,
 ) -> None:
 
     validate_args(pdf, silent, output_filepath)
 
     answers, problems = make_problems_and_answers(bits, num_problems)
 
-    if bits > 12:
-        num_columns = 3
-
     if pdf:
         silent = True
         make_pdf(
@@ -65,8 +62,13 @@ def validate_args(pdf, silent, output_filepath):
 def make_problems_and_answers(bits, num_problems):
     problems = generate_problems(bits, num_problems)
     answers = generate_answers(problems)
-    problems_string = "\n\n".join(problems)
+    problems_string = "\n\n".join(
+        [f"{index:2}) {p} =" for index, p in enumerate(problems, start=1)]
+    )
     answers_string = "\n\n".join(
-        [f"{problem} | {answer} " for problem, answer in zip(problems, answers)]
+        [
+            f"{index:2}) {problem} = {answer}"
+            for index, (problem, answer) in enumerate(zip(problems, answers), start=1)
+        ]
     )
     return answers_string, problems_string

app/pdf.py

@@ -46,9 +46,9 @@ def make_pdf_file(output_path):
     subprocess.call(command, shell=True)
 
 
-def make_postscript_file(txt_file: str, num_columns: int, font_size: int):
+def make_postscript_file(txt_file, num_columns: int, font_size: int):
     command = (
-        f"enscript --columns={num_columns} --no-header --output={POSTSCRIPT_FILEPATH} "
-        f"-FCourier{font_size} {txt_file.name}"
+        f"enscript --columns={num_columns} --no-header --font=Courier{font_size} "
+        f"--output={POSTSCRIPT_FILEPATH} {txt_file.name}"
     )
     subprocess.call(command, shell=True)

setup.py

@@ -8,7 +8,7 @@ setup(
     name="binary_quiz",
     author="Zev Averbach",
     author_email="zev@averba.ch",
-    version="0.1.6",
+    version="0.1.8",
     license="MIT",
     long_description_content_type="text/markdown",
     description=(