Black formatting pass, fix some linter errors

Author: somacdivad

creating-and-modifying-pdfs/source_code/01-extracting-text-from-a-pdf.py

@@ -1,4 +1,3 @@
-
 # ---------------
 # Open a PDF File
 # ---------------
@@ -7,11 +6,12 @@
 
 # You might need to change this to match the path on your computer
 from pathlib import Path
+
 pdf_path = (
-    Path.home() /
-    "creating-and-modifying-pdfs" /
-    "practice_files" /
-    "Pride_and_Prejudice.pdf"
+    Path.home()
+    / "creating-and-modifying-pdfs"
+    / "practice_files"
+    / "Pride_and_Prejudice.pdf"
 )
 
 pdf = PdfFileReader(str(pdf_path))
@@ -46,10 +46,10 @@
 
 # Change the path below to the correct path for your computer.
 pdf_path = (
-    Path.home() /
-    "creating-and-modifying-pdfs" /
-    "practice-files" /
-    "Pride_and_Prejudice.pdf"
+    Path.home()
+    / "creating-and-modifying-pdfs"
+    / "practice-files"
+    / "Pride_and_Prejudice.pdf"
 )
 
 pdf_reader = PdfFileReader(str(pdf_path))

creating-and-modifying-pdfs/source_code/02-extracting-pages-from-a-pdf.py

@@ -3,13 +3,15 @@
 # -----------------------------
 
 from PyPDF2 import PdfFileWriter
+
 pdf_writer = PdfFileWriter()
 
 page = pdf_writer.addBlankPage(width=72, height=72)
 
 print(type(page))
 
 from pathlib import Path
+
 with Path("blank.pdf").open(mode="wb") as output_file:
     pdf_writer.write(output_file)
 
@@ -23,10 +25,10 @@
 
 # Change the path to work on your computer if necessary
 pdf_path = (
-    Path.home() /
-    "creating-and-modifying-pdfs" /
-    "practice_files" /
-    "Pride_and_Prejudice.pdf"
+    Path.home()
+    / "creating-and-modifying-pdfs"
+    / "practice_files"
+    / "Pride_and_Prejudice.pdf"
 )
 input_pdf = PdfFileReader(str(pdf_path))
 
@@ -47,10 +49,10 @@
 from pathlib import Path
 
 pdf_path = (
-    Path.home() /
-    "creating-and-modifying-pdfs" /
-    "practice_files" /
-    "Pride_and_Prejudice.pdf"
+    Path.home()
+    / "creating-and-modifying-pdfs"
+    / "practice_files"
+    / "Pride_and_Prejudice.pdf"
 )
 input_pdf = PdfFileReader(str(pdf_path))
 
@@ -64,7 +66,7 @@
 pdf_writer = PdfFileWriter()
 
 for page in input_pdf.pages[1:4]:
-   pdf_writer.addPage(page)
+    pdf_writer.addPage(page)
 
 with Path("chapter1_slice.pdf").open(mode="wb") as output_file:
-    pdf_writer.write(output_file)
+    pdf_writer.write(output_file)

creating-and-modifying-pdfs/source_code/03-concatenating-and-merging-pdfs.py

@@ -3,18 +3,20 @@
 # -----------------------------
 
 from PyPDF2 import PdfFileMerger
+
 pdf_merger = PdfFileMerger()
 
 # ---------------------------------
 # Concatenating PDFs With .append()
 # ---------------------------------
 
 from pathlib import Path
+
 reports_dir = (
-    Path.home() /
-    "creating-and-modifying-pdfs" /
-    "practice_files" /
-    "expense_reports"
+    Path.home()
+    / "creating-and-modifying-pdfs"
+    / "practice_files"
+    / "expense_reports"
 )
 
 for path in reports_dir.glob("*.pdf"):
@@ -41,10 +43,10 @@
 from PyPDF2 import PdfFileMerger
 
 report_dir = (
-    Path.home() /
-    "creating-and-modifying-pdfs" /
-    "practice_files" /
-    "quarterly_report"
+    Path.home()
+    / "creating-and-modifying-pdfs"
+    / "practice_files"
+    / "quarterly_report"
 )
 
 report_path = report_dir / "report.pdf"
@@ -56,4 +58,4 @@
 pdf_merger.merge(1, str(toc_path))
 
 with Path("full_report.pdf").open(mode="wb") as output_file:
-    pdf_merger.write(output_file)
+    pdf_merger.write(output_file)

creating-and-modifying-pdfs/source_code/04-rotating-and-cropping-PDF-pages.py

@@ -6,10 +6,7 @@
 from PyPDF2 import PdfFileReader, PdfFileWriter
 
 pdf_path = (
-    Path.home() /
-    "creating-and-modifying-pdfs" /
-    "practice_files" /
-    "ugly.pdf"
+    Path.home() / "creating-and-modifying-pdfs" / "practice_files" / "ugly.pdf"
 )
 
 pdf_reader = PdfFileReader(str(pdf_path))
@@ -60,10 +57,10 @@
 from PyPDF2 import PdfFileReader, PdfFileWriter
 
 pdf_path = (
-    Path.home() /
-    "creating-and-modifying-pdfs" /
-    "practice_files" /
-    "half_and_half.pdf"
+    Path.home()
+    / "creating-and-modifying-pdfs"
+    / "practice_files"
+    / "half_and_half.pdf"
 )
 
 pdf_reader = PdfFileReader(str(pdf_path))
@@ -92,6 +89,7 @@
 first_page = pdf_reader.getPage(0)
 
 import copy
+
 left_side = copy.deepcopy(first_page)
 current_coords = left_side.mediaBox.upperRight
 new_coords = (current_coords[0] / 2, current_coords[1])
@@ -103,4 +101,4 @@
 pdf_writer.addPage(left_side)
 pdf_writer.addPage(right_side)
 with Path("cropped_pages.pdf").open(mode="wb") as output_file:
-    pdf_writer.write(output_file)
+    pdf_writer.write(output_file)

creating-and-modifying-pdfs/source_code/05-encrypting-and-decrypting-pdfs.py

@@ -6,10 +6,10 @@
 from PyPDF2 import PdfFileReader, PdfFileWriter
 
 pdf_path = (
-    Path.home() /
-    "creating-and-modifying-pdfs" /
-    "practice_files" /
-    "newsletter.pdf"
+    Path.home()
+    / "creating-and-modifying-pdfs"
+    / "practice_files"
+    / "newsletter.pdf"
 )
 
 pdf_reader = PdfFileReader(str(pdf_path))
@@ -43,4 +43,4 @@
 
 print(pdf_reader.decrypt(password="SuperSecret"))
 
-print(pdf_reader.getPage(0))
+print(pdf_reader.getPage(0))

creating-and-modifying-pdfs/source_code/06-creating-a-pdf-file-from-scratch.py

@@ -2,4 +2,54 @@
 # Using the Canvas Class
 # ----------------------
 
-from reportlab.pdfgen.canvas import Canvas
+from reportlab.pdfgen.canvas import Canvas
+
+canvas = Canvas("hello.pdf")
+canvas.drawString(72, 72, "Hello, World")
+canvas.save()
+
+
+# ---------------------
+# Setting the Page Size
+# ---------------------
+
+from reportlab.lib.units import inch, cm
+
+print(cm)
+print(inch)
+
+canvas = Canvas("hello.pdf", pagesize=(8.5 * inch, 11 * inch))
+
+from reportlab.lib.pagesizes import LETTER
+
+canvas = Canvas("hello.pdf", pagesize=LETTER)
+print(LETTER)
+
+
+# -----------------------
+# Setting Font Properties
+# -----------------------
+
+canvas = Canvas("font-example.pdf", pagesize=LETTER)
+canvas.setFont("Times-Roman", 18)
+canvas.drawString(1 * inch, 10 * inch, "Times New Roman (18 pt)")
+canvas.save()
+
+# The code below creates a PDF with blue text
+from reportlab.lib.colors import blue
+from reportlab.lib.pagesizes import LETTER
+from reportlab.lib.units import inch
+from reportlab.pdfgen.canvas import Canvas
+
+canvas = Canvas("font-colors.pdf", pagesize=LETTER)
+
+# Set font to Times New Roman with 12-point size
+canvas.setFont("Times-Roman", 12)
+
+# Draw blue text one inch from the left and ten
+# inches from the bottom
+canvas.setFillColor(blue)
+canvas.drawString(1 * inch, 10 * inch, "Blue text")
+
+# Save the PDF file
+canvas.save()