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Commit a4737065 authored by msyamkumar's avatar msyamkumar
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Lec 32 materials

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f22/meena_lec_notes/lec-32/.ipynb_checkpoints/demo_lec_31-checkpoint.ipynb deleted 100644 → 0
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%% Cell type:code id: tags:
``` python
from IPython.core.display import display, HTML
display(HTML("<style>.container { width:100% !important; }</style>"))
```
%% Output
%% Cell type:code id: tags:
``` python
import csv
import os
import csv
```
%% Cell type:code id: tags:
``` python
# copied from https://automatetheboringstuff.com/2e/chapter16/
def process_csv(filename):
exampleFile = open(filename)
exampleReader = csv.reader(exampleFile)
exampleData = list(exampleReader)
return exampleData
```
%% Cell type:markdown id: tags:
## Example 1: List Visualization
### Write a gen_html function
- Input: shopping_list and path to shopping.html
- Outcome: create shopping.html file
### Pseudocode
1. Open "shopping.html" in write mode.
2. Write \<ul\> tag into the html file
3. Iterate over each item in shopping list.
4. Write each item with <\li\> tag.
5. After you are done iterating, write \</ul\> tag.
6. Close the file object.
%% Cell type:code id: tags:
``` python
def gen_html(shopping_list, html_path):
f = open(html_path, "w")
f.write("<ul>\n")
for item in shopping_list:
f.write("<li>" + str(item) + "\n")
f.write("</ul>\n")
f.close()
gen_html(["apples", "oranges", "milk", "banana"], "shopping.html")
```
%% Cell type:markdown id: tags:
## Example 2: Dictionary Visualization
### Write a csv_to_html function
- Input: path to review1.csv and path to reviews.html
- Outcome 1: create a html file for each review
- Outcome 2: create reviews.html file containing link to a html file for each review
### Pseudocode
1. Create data_html folder using os.mkdir. Make sure to use try ... except blocks to catch FileExistsError
2. Use process_csv function to read csv data and split the header and the data
3. For each review, extract review id, review title, review text.
4. generate the \<rid\>.html for each review inside data_html folder.
- Open \<rid\>.html in write mode
- Add review title using \<h1\> tag
- Add review text inside\<p\> tag
- Close \<rid\>.html file object
5. generate a reviews.html file which has link to each review html page \<rid\>.html
- Open reviews.html file in write mode
- Add each \<rid\>.html as hyperlink using \<a\> tag.
- Close reviews.html file
%% Cell type:code id: tags:
``` python
def csv_to_html(csv_path, html_path):
try:
os.mkdir("data_html")
except FileExistsError:
pass
reviews_data = process_csv(csv_path)
reviews_header = reviews_data[0]
reviews_data = reviews_data[1:]
reviews_file = open(html_path, "w")
reviews_file.write("<ul>\n")
for row in reviews_data:
rid = row[reviews_header.index("review id")]
title = row[reviews_header.index("review title")]
text = row[reviews_header.index("review text")]
# STEP 4: generate the <rid>.html for each review inside data folder
review_path = os.path.join("data_html", str(rid) + ".html")
html_file = open(review_path, "w")
html_file.write("<h1>{}</h1><p>{}</p>".format(title, text))
html_file.close()
# STEP 5: generate a reviews.html file which has link to each review html page <rid>.html
reviews_file.write('<li><a href = "{}">{}</a>'.format(review_path, str(rid) + ":" + str(title)) + "<br>\n")
reviews_file.write("</ul>\n")
reviews_file.close()
csv_to_html(os.path.join("data", "review1.csv"), "reviews.html")
```
%% Cell type:code id: tags:
``` python
```
f22/meena_lec_notes/lec-32/.ipynb_checkpoints/demo_lec_31_template-checkpoint.ipynb deleted 100644 → 0
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− 109
View file @ 38593c46
%% Cell type:code id: tags:
``` python
from IPython.core.display import display, HTML
display(HTML("<style>.container { width:100% !important; }</style>"))
```
%% Cell type:code id: tags:
``` python
import csv
import os
```
%% Cell type:markdown id: tags:
## Example 1: List Visualization
### Write a gen_html function
- Input: shopping_list and path to shopping.html
- Outcome: create shopping.html file
### Pseudocode
1. Open "shopping.html" in write mode.
2. Write \<ul\> tag into the html file
3. Iterate over each item in shopping list.
4. Write each item with \<li\> tag.
5. After you are done iterating, write \</ul\> tag.
6. Close the file object.
%% Cell type:code id: tags:
``` python
```
%% Cell type:markdown id: tags:
## Example 2: Dictionary Visualization
### Write a csv_to_html function
- Input: path to review1.csv and path to reviews.html
- Outcome 1: create a html file for each review
- Outcome 2: create reviews.html file containing link to a html file for each review
### Pseudocode
1. Create data_html folder using os.mkdir. Make sure to use try ... except blocks to catch FileExistsError
2. Use process_csv function to read csv data and split the header and the data
3. For each review, extract review id, review title, review text.
4. generate the \<rid\>.html for each review inside data_html folder.
- Open \<rid\>.html in write mode
- Add review title using \<h1\> tag
- Add review text inside\<p\> tag
- Close \<rid\>.html file object
5. generate a reviews.html file which has link to each review html page \<rid\>.html
- Open reviews.html file in write mode
- Add each \<rid\>.html as hyperlink using \<a\> tag.
- Close reviews.html file
%% Cell type:code id: tags:
``` python
```
%% Cell type:code id: tags:
``` python
```
f22/meena_lec_notes/lec-32/.ipynb_checkpoints/lec_32_database1-checkpoint.ipynb deleted 100644 → 0
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