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Merge branch 'revised-solutions-jan2020-update'

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ch09-lists-tuples-and-dictionaries
- 2-lists-are-mutable-sequences.py
ch11-file-input-and-output
- 1-read-and-write-simple-files.py
- 2-working-with-file-paths-in-python.py
- 2-working-with-paths-in-python.py
- 3-challenge-use-pattern-matching-to-delete-files.py
- 3-common-file-system-operations.py
- 4-challenge-move-all-image-files-to-a-new-directory.py
- 4-read-and-write-csv-data.py
- 5-challenge-create-a-high-scores-list-from-csv-data.py
- 5-reading-and-writing-files.py
- 6-challenge-split-a-csv-file.py
- 6-read-and-write-csv-data.py
- 7-challenge-create-a-high-scores-list.py
- practice_files
  - backup
    - images
      - an image file.gif
      - another image.gif
    - little pics
      - save me please.jpg
      - to be deleted.jpg
  - documents
    - files
      - additional files
        image3.png
      - dad.txt
      - stuff.csv
    - image1.png
    - more_files
      - even_more_files
        image4.jpg
        the_answer.txt
      - image2.gif
      - mom.txt
  - example.txt
  - images
    - additional files
      - one last image.png
    - an image file.gif
    - another image.gif
    - one more image.gif
    - png file - not a gif.png
  - little pics
    - better not delete me.txt
    - look in here too
      - definitely has to go.jpg
    - save me please.jpg
    - to be deleted.jpg
  - pastimes.csv
  - poem.txt
  - scores.csv
  - tabbed wonka.csv
  - wonka.csv
- sample_csv.csv
ch13-interact-with-pdf-files

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61 files changed

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`‎ch09-lists-tuples-and-dictionaries/2-lists-are-mutable-sequences.py`

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`38`	`38`	`# Exercise 7`
`39`	`39`	`# Verify that breakfast has three items using len()`
`40`	`40`	`print(len(breakfast)==3)`
	`41`	`+`
	`42`	`+`
	`43`	`+# Exercise 8`
	`44`	+# Create a new list called `lengths` using a list
	`45`	`+# comprehension that contains the lengths of each`
	`46`	+# string in the `breakfast` list.
	`47`	`+lengths= [len(item)foriteminbreakfast]`
	`48`	`+print(lengths)`

`‎ch11-file-input-and-output/1-read-and-write-simple-files.py`

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`‎ch11-file-input-and-output/2-working-with-file-paths-in-python.py`

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	`1`	`+# 11.2 - Working With File Paths in Python`
	`2`	`+# Solutions to review exercises`
	`3`	`+`
	`4`	`+`
	`5`	`+# Exercise 1`
	`6`	`+frompathlibimportPath`
	`7`	`+`
	`8`	`+file_path=Path.home()/"my_folder"/"my_file.txt"`
	`9`	`+`
	`10`	`+`
	`11`	`+# Exercise 2`
	`12`	`+print(file_path.exists())`
	`13`	`+`
	`14`	`+`
	`15`	`+# Exercise 3`
	`16`	`+print(file_path.name)`
	`17`	`+`
	`18`	`+`
	`19`	`+# Exercise 4`
	`20`	`+print(file_path.parent.name)`

`‎ch11-file-input-and-output/2-working-with-paths-in-python.py`

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`‎ch11-file-input-and-output/3-challenge-use-pattern-matching-to-delete-files.py`

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`‎ch11-file-input-and-output/3-common-file-system-operations.py`

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	`1`	`+# 11.3 Common File System Operations`
	`2`	`+# Solutions to Exercises`
	`3`	`+`
	`4`	`+`
	`5`	`+# Exercise 1`
	`6`	`+frompathlibimportPath`
	`7`	`+`
	`8`	`+new_dir=Path.home()/"my_folder"`
	`9`	`+new_dir.mkdir()`
	`10`	`+`
	`11`	`+`
	`12`	`+# Exercise 2`
	`13`	`+file1=new_dir/"file1.txt"`
	`14`	`+file2=new_dir/"file2.txt"`
	`15`	`+image1=new_dir/"image1.png"`
	`16`	`+`
	`17`	`+file1.touch()`
	`18`	`+file2.touch()`
	`19`	`+image1.touch()`
	`20`	`+`
	`21`	`+`
	`22`	`+# Exercise 3`
	`23`	`+images_dir=new_dir/"images"`
	`24`	`+images_dir.mkdir()`
	`25`	`+image1.replace(images_dir/"image1.png")`
	`26`	`+`
	`27`	`+`
	`28`	`+# Exercise 4`
	`29`	`+file1.unlink()`
	`30`	`+`
	`31`	`+`
	`32`	`+# # Exercise 5`
	`33`	`+importshutil`
	`34`	`+shutil.rmtree(new_dir)`

`‎ch11-file-input-and-output/4-challenge-move-all-image-files-to-a-new-directory.py`

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	`1`	`+# 11.4 Challenge: Move All Image Files To a New Directory`
	`2`	`+# Solution to Challenge`
	`3`	`+`
	`4`	`+frompathlibimportPath`
	`5`	`+`
	`6`	`+# Change this path to match the location on your computer`
	`7`	`+documents_dir= (`
	`8`	`+Path.home()/`
	`9`	`+"python-basics-exercises"/`
	`10`	`+"ch11-file-input-and-output"/`
	`11`	`+"practice_files"/`
	`12`	`+"documents"`
	`13`	`+)`
	`14`	`+`
	`15`	`+# Create an images/ directory in your home directory`
	`16`	`+images_dir=Path.home()/"images"`
	`17`	`+images_dir.mkdir(exist_ok=True)`
	`18`	`+`
	`19`	`+# Search for image files in the documents directory and move`
	`20`	`+# them to the images/ directory`
	`21`	`+forpathindocuments_dir.rglob("."):`
	`22`	`+ifpath.suffix.lower()in [".png",".jpg",".gif"]:`
	`23`	`+path.replace(images_dir/path.name)`

`‎ch11-file-input-and-output/4-read-and-write-csv-data.py`

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`‎ch11-file-input-and-output/5-challenge-create-a-high-scores-list-from-csv-data.py`

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`‎ch11-file-input-and-output/5-reading-and-writing-files.py`

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	`1`	`+# 11.5 - Reading and Writing Files`
	`2`	`+# Solutions to Exercises`
	`3`	`+`
	`4`	`+`
	`5`	`+# Exercise 1`
	`6`	`+frompathlibimportPath`
	`7`	`+`
	`8`	`+starships= ["Discovery\n","Enterprise\n","Defiant\n","Voyager"]`
	`9`	`+`
	`10`	`+file_path=Path.home()/"starships.txt"`
	`11`	`+withfile_path.open(mode="w",encoding="utf-8")asfile:`
	`12`	`+file.writelines(starships)`
	`13`	`+`
	`14`	`+`
	`15`	`+# Exercise 2`
	`16`	`+withfile_path.open(mode="r",encoding="utf-8")asfile:`
	`17`	`+forstarshipinfile.readlines():`
	`18`	`+print(starship,end="")`
	`19`	`+`
	`20`	`+`
	`21`	`+# Exercise 3`
	`22`	`+withfile_path.open(mode="r",encoding="utf-8")asfile:`
	`23`	`+forstarshipinfile.readlines():`
	`24`	`+ifstarship.startswith("D"):`
	`25`	`+print(starship,end="")`

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Commit30c3f99

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61 files changed

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61 files changed

`‎ch09-lists-tuples-and-dictionaries/2-lists-are-mutable-sequences.py`

`‎ch11-file-input-and-output/1-read-and-write-simple-files.py`

`‎ch11-file-input-and-output/2-working-with-file-paths-in-python.py`

`‎ch11-file-input-and-output/2-working-with-paths-in-python.py`

`‎ch11-file-input-and-output/3-challenge-use-pattern-matching-to-delete-files.py`

`‎ch11-file-input-and-output/3-common-file-system-operations.py`

`‎ch11-file-input-and-output/4-challenge-move-all-image-files-to-a-new-directory.py`

`‎ch11-file-input-and-output/4-read-and-write-csv-data.py`

`‎ch11-file-input-and-output/5-challenge-create-a-high-scores-list-from-csv-data.py`

`‎ch11-file-input-and-output/5-reading-and-writing-files.py`

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