I am trying to remove the trailing .0 from the rows of CAS/ID NO column using this code:
import requests
import pandas as pd
url = ' https://www.accessdata.fda.gov/scripts/sda/sdNavigation.cfm?sd=edisrev&displayAll=true'
html = requests.get(url).content
df_list2 = pd.read_html(html)
df2 = df_list2[0]
df3=df2.dropna(subset = ['CAS/ID NO'])
df3['CAS'] = df3['CAS/ID NO'].to_string()
df3['CAS'] = df3['CAS/ID NO'].astype(str).replace('\.0', '', regex=False)
df3
It is steadfastly resisting all of my efforts.
You could try to convert in to type .astype('int64'):
df2['CAS'] = df2['CAS/ID NO'].astype('int64')
Example
import requests
import pandas as pd
url = ' https://www.accessdata.fda.gov/scripts/sda/sdNavigation.cfm?sd=edisrev&displayAll=true'
html = requests.get(url).content
df_list2 = pd.read_html(html)
df2 = df_list2[0]
df2 = df2.dropna(subset = ['CAS/ID NO']).copy()
df2['CAS'] = df2['CAS/ID NO'].astype('int64')
df2
Related
I am trying to add row items to the dataframe, and I am not able to update the dataframe.
What i tried until now is commented out as it doesn't do what I need.
I simply want to download the json file and store it to a dataframe with those given columns. Seems I am not able to extract the child components fron JSON file and store them to a brand new dataframe.
Please find bellow my code:
import requests, json, urllib
import pandas as pd
url = "https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json"
data = pd.read_json(url)
headers = []
df = pd.DataFrame()
for key, item in data['vulnerabilities'].items():
for k in item.keys():
headers.append(k)
col = list(set(headers))
new_df = pd.DataFrame(columns=col)
for item in data['vulnerabilities'].items():
print(item[1])
# new_df['product'] = item[1]['product']
# new_df['vendorProject'] = item[1]['vendorProject']
# new_df['dueDate'] = item[1]['dueDate']
# new_df['shortDescription'] = item[1]['shortDescription']
# new_df['dateAdded'] = item[1]['dateAdded']
# new_df['vulnerabilityName'] = item[1]['vulnerabilityName']
# new_df['cveID'] = item[1]['cveID']
# new_df.append(item[1], ignore_index = True)
new_df
At the end my df is still blank.
The nested JSON data can be directly converted to a flattened dataframe using pd.json_normalize(). The headers are extracted from the JSON itself.
new_df = pd.DataFrame(pd.json_normalize(data['vulnerabilities']))
UPDATE: Unnested the vulnerabilities column specifically.
Output:
It worked with this:
import requests, json, urllib
import pandas as pd
url = "https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json"
data = pd.read_json(url)
headers = []
df = pd.DataFrame()
for key, item in data['vulnerabilities'].items():
for k in item.keys():
headers.append(k)
col = list(set(headers))
new_df = pd.DataFrame(columns=col)
for item in data['vulnerabilities'].items():
new_df.loc[len(new_df.index)] = item[1] <===THIS
new_df.head()
Based on the answered code from this link, I'm able to create a new column: df['url'] = 'https://www.cspea.com.cn/list/c01/' + df['projectCode'].
Next step I would like to pass the url column's values to the following code and append all the scrapied contents as dataframe.
import urllib3
import requests
from bs4 import BeautifulSoup
import pandas as pd
url = "https://www.cspea.com.cn/list/c01/gr2021bj1000186" # url column's values should be passed here one by one
soup = BeautifulSoup(requests.get(url, verify=False).content, "html.parser")
index, data = [], []
for th in soup.select(".project-detail-left th"):
h = th.get_text(strip=True)
t = th.find_next("td").get_text(strip=True)
index.append(h)
data.append(t)
df = pd.DataFrame(data, index=index, columns=["value"])
print(df)
How could I do that in Python? Thanks.
Updated:
import requests
from bs4 import BeautifulSoup
import pandas as pd
df = pd.read_excel('items_scraped.xlsx')
data = []
urls = df.url.tolist()
for url_link in urls:
url = url_link
# url = "https://www.cspea.com.cn/list/c01/gr2021bj1000186"
soup = BeautifulSoup(requests.get(url, verify=False).content, "html.parser")
index, data = [], []
for th in soup.select(".project-detail-left th"):
h = th.get_text(strip=True)
t = th.find_next("td").get_text(strip=True)
index.append(h)
data.append(t)
df = pd.DataFrame(data, index=index, columns=["value"])
df = df.T
df.reset_index(drop=True, inplace=True)
print(df)
df.to_excel('result.xlsx', index = False)
But it only saved one rows into excel file.
You need to combine the dfs generated in the loop. You could add them to a list and then call pd.concat on that list.
import requests
from bs4 import BeautifulSoup
import pandas as pd
df = pd.read_excel('items_scraped.xlsx')
# data = []
urls = df.url.tolist()
dfs = []
for url_link in urls:
url = url_link
# url = "https://www.cspea.com.cn/list/c01/gr2021bj1000186"
soup = BeautifulSoup(requests.get(url, verify=False).content, "html.parser")
index, data = [], []
for th in soup.select(".project-detail-left th"):
h = th.get_text(strip=True)
t = th.find_next("td").get_text(strip=True)
index.append(h)
data.append(t)
df = pd.DataFrame(data, index=index, columns=["value"])
df = df.T
df.reset_index(drop=True, inplace=True)
print(df)
dfs.append(df)
df = pd.concat(dfs)
df.to_excel('result.xlsx', index = False)
Use
urls = df.url.tolist()
To create a list of URLs and then iterate through them using f string to insert each one into your base url
Python novice here again! 2 questions:
1) Instead of saving to multiple tabs (currently saving each year to a tab named after the year) how can I save all this data into one sheet in excel called "summary".
2) ('div',class_="sidearm-schedule-game-result") returns the format "W, 1-0". How can I split the "W, 1-0" into two columns, one containing "W" and the next column containing "1-0".
Thanks so much
import requests
import pandas as pd
from pandas import ExcelWriter
from bs4 import BeautifulSoup
import openpyxl
import csv
year_id = ['2003','2004','2005','2006','2007','2008','2009','2010','2011','2012','2013','2014','2015','2016','2017','2018','2019']
lehigh_url = 'https://lehighsports.com/sports/mens-soccer/schedule/'
results = []
with requests.Session() as req:
for year in range(2003, 2020):
print(f"Extracting Year# {year}")
url = req.get(f"{lehigh_url}{year}")
if url.status_code == 200:
soup = BeautifulSoup(url.text, 'lxml')
rows = soup.find_all('div',class_="sidearm-schedule-game-row flex flex-wrap flex-align-center row")
sheet = pd.DataFrame()
for row in rows:
date = row.find('div',class_="sidearm-schedule-game-opponent-date").text.strip()
name = row.find('div',class_="sidearm-schedule-game-opponent-name").text.strip()
opp = row.find('div',class_="sidearm-schedule-game-opponent-text").text.strip()
conf = row.find('div',class_="sidearm-schedule-game-conference-conference").text.strip()
try:
result = row.find('div',class_="sidearm-schedule-game-result").text.strip()
except:
result = ''
df = pd.DataFrame([[year,date,name,opp,conf,result]], columns=['year','date','opponent','list','conference','result'])
sheet = sheet.append(df,sort=True).reset_index(drop=True)
results.append(sheet)
def save_xls(list_dfs, xls_path):
with ExcelWriter(xls_path) as writer:
for n, df in enumerate(list_dfs):
df.to_excel(writer,'%s' %year_id[n],index=False,)
writer.save()
save_xls(results,'lehigh.xlsx')
Instead of creating a list of dataframes, you can append each sheet into 1 dataframe and write that to file with pandas. Then to split into 2 columns, just use .str.split() and split on the comma.
import requests
import pandas as pd
from bs4 import BeautifulSoup
year_id = ['2019','2018','2017','2016','2015','2014','2013','2012','2011','2010','2009','2008','2007','2006','2005','2004','2003']
results = pd.DataFrame()
for year in year_id:
url = 'https://lehighsports.com/sports/mens-soccer/schedule/' + year
print (url)
lehigh = requests.get(url).text
soup = BeautifulSoup(lehigh,'lxml')
rows = soup.find_all('div',class_="sidearm-schedule-game-row flex flex-wrap flex-align-center row")
sheet = pd.DataFrame()
for row in rows:
date = row.find('div',class_="sidearm-schedule-game-opponent-date").text.strip()
name = row.find('div',class_="sidearm-schedule-game-opponent-name").text.strip()
opp = row.find('div',class_="sidearm-schedule-game-opponent-text").text.strip()
conf = row.find('div',class_="sidearm-schedule-game-conference-conference").text.strip()
try:
result = row.find('div',class_="sidearm-schedule-game-result").text.strip()
except:
result = ''
df = pd.DataFrame([[year,date,name,opp,conf,result]], columns=['year','date','opponent','list','conference','result'])
sheet = sheet.append(df,sort=True).reset_index(drop=True)
results = results.append(sheet, sort=True).reset_index(drop=True)
results['result'], results['score'] = results['result'].str.split(',', 1).str
results.to_excel('lehigh.xlsx')
I want to scrape data from a webpage from a wayback machine using pandas. I used string split to split some string if its present.
the URL for the webpage is this
Here is my code:
import pandas as pd
url = "https://web.archive.org/web/20140528015357/http://eciresults.nic.in/statewiseS26.htm"
dfs = pd.read_html(url)
df = dfs[0]
idx = df[df[0] == '\xa0Next >>'].index[0]
# Error mentioned in comment happens on the above line.
cols = list(df.iloc[idx-1,:])
df.columns = cols
df = df[df['Const. No.'].notnull()]
df = df.loc[df['Const. No.'].str.isdigit()].reset_index(drop=True)
df = df.dropna(axis=1,how='all')
df['Leading Candidate'] = df['Leading Candidate'].str.split('i',expand=True)[0]
df['Leading Party'] = df['Leading Party'].str.split('iCurrent',expand=True)[0]
df['Trailing Party'] = df['Trailing Party'].str.split('iCurrent',expand=True)[0]
df['Trailing Candidate'] = df['Trailing Candidate'].str.split('iAssembly',expand=True)[0]
df.to_csv('Chhattisgarh_cand.csv', index=False)
The expected output from that webpage must be in csv format like
You can use BeautifulSoup to extract the data. Panadas will help you to process the data in efficient way but its not ment for data extraction.
import pandas as pd
from bs4 import BeautifulSoup
import requests
response = requests.get('https://web.archive.org/web/20140528015357/http://eciresults.nic.in/statewiseS26.htm?st=S26')
soup = BeautifulSoup(response.text,'lxml')
table_data = []
required_table = [table for table in soup.find_all('table') if str(table).__contains__('Indian National Congress')]
if required_table:
for tr_tags in required_table[0].find_all('tr',{'style':'font-size:12px;'}):
td_data = []
for td_tags in tr_tags.find_all('td'):
td_data.append(td_tags.text.strip())
table_data.append(td_data)
df = pd.DataFrame(table_data[1:])
# print(df.head())
df.to_csv("DataExport.csv",index=False)
You can expect result like this in pandas dataframe,
0 1 ... 6 7
0 BILASPUR 5 ... 176436 Result Declared
1 DURG 7 ... 16848 Result Declared
2 JANJGIR-CHAMPA 3 ... 174961 Result Declared
3 KANKER 11 ... 35158 Result Declared
4 KORBA 4 ... 4265 Result Declared
The code below should get you the table on your url link ("Chhattisgarh Result Status") using a combination of BS and pandas; you can then save it as csv:
from bs4 import BeautifulSoup
import urllib.request
import pandas as pd
url = "https://web.archive.org/web/20140528015357/http://eciresults.nic.in/statewiseS26.htm?st=S26"
response = urllib.request.urlopen(url)
elect = response.read()
soup = BeautifulSoup(elect,"lxml")
res = soup.find_all('table')
df = pd.read_html(str(res[7]))
df[3]
there is a file I tried to import and safe as pandas df. At a first sight looks like it's already columns and rows ordered, but finally I had to do a bunch of stuff to create pandas df. Could you please check if there is much faster way to manage it?
url = 'https://archive.ics.uci.edu/ml/machine-learning-databases/auto-mpg/auto-mpg.data'
My way of doing it is:
import requests
import pandas as pd
r = requests.get(url)
file = r.text
step_1 = file.split('\n')
for n in range(len(step_1)): # remove empty strings
if bool(step_1[n]) == False:
del(step_1[n])
step_2 = [i.split('\t') for i in step_1]
cars_names = [i[1] for i in step_2]
step_3 = [i[0].split(' ') for i in step_2]
for e in range(len(step_3)): # remove empty strings in each sublist
step_3[e] = [item for item in step_3[e] if item != '']
mpg = [i[0] for i in step_3]
cylinders = [i[1] for i in step_3]
disp = [i[2] for i in step_3]
horsepower = [i[3] for i in step_3]
weight = [i[4] for i in step_3]
acce = [i[5] for i in step_3]
year = [i[6] for i in step_3]
origin = [i[7] for i in step_3]
list_cols = [cars_names, mpg, cylinders, disp, horsepower, weight, acce, year, origin]
# list_labels written manually:
list_labels = ['car name', 'mpg', 'cylinders', 'displacement', 'horsepower', 'weight', 'acceleration', 'model year', 'origin']
zipped = list(zip(list_labels, list_cols))
data = dict(zipped)
df = pd.DataFrame(data)
When you replaced \t to blankspace, you can use read_csv to read it. But you need to wrap up your text, because the first parameter in read_csv is filepath_or_buffer which needs object with a read() method (such as a file handle or StringIO). Then your question can be transform to read_csv doesn't read the column names correctly on this file?
import requests
import pandas as pd
from io import StringIO
url = 'https://archive.ics.uci.edu/ml/machine-learning-databases/auto-mpg/auto-mpg.data'
r = requests.get(url)
file = r.text.replace("\t"," ")
# list_labels written manually:
list_labels = ['mpg', 'cylinders', 'displacement', 'horsepower', 'weight', 'acceleration', 'model year', 'origin','car name']
df = pd.read_csv(StringIO(file),sep="\s+",header = None,names=list_labels)
with pd.option_context('display.max_rows', None, 'display.max_columns', None):
print(df)