Add solution to ch13 section 3 exercise 1

somacdivad · somacdivad · commit 97bf1164f631 · 2020-01-13T20:51:50.000-06:00
diff --git a/ch13-interact-with-pdf-files/3-concatenating-and-merging-pdfs.py b/ch13-interact-with-pdf-files/3-concatenating-and-merging-pdfs.py
@@ -1,2 +1,29 @@
-# 13.2 - Concatenating and Merging PDFs
+# 13.3 - Concatenating and Merging PDFs
 # Solutions to review exercises
+
+# ***********
+# Exercise 1
+#
+# In the Chapter 13 Practice Files directory there are three PDFs called
+# `merge1.pdf`, `merge2.pdf`, and `merge3.pdf`. Using a `PdfFileMerger`
+# instance, concatenate the two files `merge1.pdf` and `merge2.pdf`
+# using`.append()`.
+# ***********
+
+from pathlib import Path
+
+from PyPDF2 import PdfFileMerger
+
+
+BASE_PATH = Path.home() / "github/realpython/python-basics-exercises/" \
+    "ch13-interact-with-pdf-files/practice_files"
+
+pdf_paths = [BASE_PATH / "merge1.pdf", BASE_PATH / "merge2.pdf"]
+pdf_merger = PdfFileMerger()
+
+for path in pdf_paths:
+    pdf_merger.append(str(path))
+
+output_path = Path.home() / "concatenated.pdf"
+with output_path.open(mode="wb") as output_file:
+    pdf_merger.write(output_file)
