For Loop to Concatenate SQL results

I am trying to create a function that takes a list, 'teams', runs a SQL query retrieving results for each team using a for loop, returns the results to their respective fields in a dataframe, and then concatenates the data side-by-side. So ideally the results would look something like this:

enter image description here

The code I have below produces an error: "'list' object has no attribute 'concat'". Can someone please advise how I can achieve my desired output?

Thanks!

teams = ['Chicago','Orlando','Miami','New York']



class Team:

    Date = datetime(1900,1,1)

    Pts_Scored = 0



def myfunct(conn, teams):

    curr = conn.cursor()

    pts_scored = 



    for t in teams:

        curr.execute("select date, pts_scored from db.teams where teams ='"+t+"'")

        for i in curr:

            point_hist = Team()

            point_hist.Date = i[1]

            point_hist.Pts_Scored = i[2]

            pts_scored.concat(point_hist)

edited Nov 12 '18 at 20:25

Idlehands

4,2011517

asked Nov 12 '18 at 20:14

Tony

577

2

A list doesn't have a concat method, but it does have an append method :-)
– Rob Bricheno
Nov 12 '18 at 20:16

Agree but to my knowledge the append would merge the results vertically instead of horizontally?
– Tony
Nov 12 '18 at 20:18

im not familiar with python. but in sql I can create the query vertical and then use PIVOT to convert it to horizontal format.
– Juan Carlos Oropeza
Nov 12 '18 at 20:21

1

@Tony that doesn't make any sense. list objects don't have dimensions.
– juanpa.arrivillaga
Nov 12 '18 at 20:25

That's not how you set up instance attributes for a class.
– Idlehands
Nov 12 '18 at 20:27

|
show 2 more comments

enter image description here

The code I have below produces an error: "'list' object has no attribute 'concat'". Can someone please advise how I can achieve my desired output?

Thanks!

teams = ['Chicago','Orlando','Miami','New York']



class Team:

    Date = datetime(1900,1,1)

    Pts_Scored = 0



def myfunct(conn, teams):

    curr = conn.cursor()

    pts_scored = 



    for t in teams:

        curr.execute("select date, pts_scored from db.teams where teams ='"+t+"'")

        for i in curr:

            point_hist = Team()

            point_hist.Date = i[1]

            point_hist.Pts_Scored = i[2]

            pts_scored.concat(point_hist)

edited Nov 12 '18 at 20:25

Idlehands

4,2011517

asked Nov 12 '18 at 20:14

Tony

577

2

A list doesn't have a concat method, but it does have an append method :-)
– Rob Bricheno
Nov 12 '18 at 20:16

Agree but to my knowledge the append would merge the results vertically instead of horizontally?
– Tony
Nov 12 '18 at 20:18

im not familiar with python. but in sql I can create the query vertical and then use PIVOT to convert it to horizontal format.
– Juan Carlos Oropeza
Nov 12 '18 at 20:21

1

@Tony that doesn't make any sense. list objects don't have dimensions.
– juanpa.arrivillaga
Nov 12 '18 at 20:25

That's not how you set up instance attributes for a class.
– Idlehands
Nov 12 '18 at 20:27

|
show 2 more comments

enter image description here

The code I have below produces an error: "'list' object has no attribute 'concat'". Can someone please advise how I can achieve my desired output?

Thanks!

teams = ['Chicago','Orlando','Miami','New York']



class Team:

    Date = datetime(1900,1,1)

    Pts_Scored = 0



def myfunct(conn, teams):

    curr = conn.cursor()

    pts_scored = 



    for t in teams:

        curr.execute("select date, pts_scored from db.teams where teams ='"+t+"'")

        for i in curr:

            point_hist = Team()

            point_hist.Date = i[1]

            point_hist.Pts_Scored = i[2]

            pts_scored.concat(point_hist)

edited Nov 12 '18 at 20:25

Idlehands

4,2011517

asked Nov 12 '18 at 20:14

Tony

577

enter image description here

The code I have below produces an error: "'list' object has no attribute 'concat'". Can someone please advise how I can achieve my desired output?

Thanks!

teams = ['Chicago','Orlando','Miami','New York']



class Team:

    Date = datetime(1900,1,1)

    Pts_Scored = 0



def myfunct(conn, teams):

    curr = conn.cursor()

    pts_scored = 



    for t in teams:

        curr.execute("select date, pts_scored from db.teams where teams ='"+t+"'")

        for i in curr:

            point_hist = Team()

            point_hist.Date = i[1]

            point_hist.Pts_Scored = i[2]

            pts_scored.concat(point_hist)

python sql for-loop concatenation

edited Nov 12 '18 at 20:25

Idlehands

4,2011517

asked Nov 12 '18 at 20:14

Tony

577

edited Nov 12 '18 at 20:25

Idlehands

4,2011517

asked Nov 12 '18 at 20:14

Tony

577

edited Nov 12 '18 at 20:25

Idlehands

4,2011517

edited Nov 12 '18 at 20:25

Idlehands

4,2011517

edited Nov 12 '18 at 20:25

Idlehands

4,2011517

asked Nov 12 '18 at 20:14

Tony

577

asked Nov 12 '18 at 20:14

Tony

577

asked Nov 12 '18 at 20:14

Tony

577

2

A list doesn't have a concat method, but it does have an append method :-)
– Rob Bricheno
Nov 12 '18 at 20:16

Agree but to my knowledge the append would merge the results vertically instead of horizontally?
– Tony
Nov 12 '18 at 20:18

im not familiar with python. but in sql I can create the query vertical and then use PIVOT to convert it to horizontal format.
– Juan Carlos Oropeza
Nov 12 '18 at 20:21

1

@Tony that doesn't make any sense. list objects don't have dimensions.
– juanpa.arrivillaga
Nov 12 '18 at 20:25

That's not how you set up instance attributes for a class.
– Idlehands
Nov 12 '18 at 20:27

|
show 2 more comments

2

A list doesn't have a concat method, but it does have an append method :-)
– Rob Bricheno
Nov 12 '18 at 20:16

Agree but to my knowledge the append would merge the results vertically instead of horizontally?
– Tony
Nov 12 '18 at 20:18

im not familiar with python. but in sql I can create the query vertical and then use PIVOT to convert it to horizontal format.
– Juan Carlos Oropeza
Nov 12 '18 at 20:21

1

@Tony that doesn't make any sense. list objects don't have dimensions.
– juanpa.arrivillaga
Nov 12 '18 at 20:25

That's not how you set up instance attributes for a class.
– Idlehands
Nov 12 '18 at 20:27

A list doesn't have a concat method, but it does have an append method :-)
– Rob Bricheno
Nov 12 '18 at 20:16

Agree but to my knowledge the append would merge the results vertically instead of horizontally?
– Tony
Nov 12 '18 at 20:18

im not familiar with python. but in sql I can create the query vertical and then use PIVOT to convert it to horizontal format.
– Juan Carlos Oropeza
Nov 12 '18 at 20:21

@Tony that doesn't make any sense. list objects don't have dimensions.
– juanpa.arrivillaga
Nov 12 '18 at 20:25

That's not how you set up instance attributes for a class.
– Idlehands
Nov 12 '18 at 20:27

|
show 2 more comments

1 Answer
1

active

oldest

votes

pts_scored should be a dictionary whose keys are the dates. The values should be another dictionary whose keys are team names and values are the scores.

def myfunct(conn, teams):

    curr = conn.cursor()

    pts_scored = {}



    curr.execute("select date, pts_scored, teams from db.teams")

    for i in curr:

        if i['teams'] in teams:

            if i['date'] not in pts_scored:

                pts_scores[i['date']] = {}

            point_hist[i['date']][i['teams'] = i['pts_scored']

You can then use a nested loop to print the table:

# print heading

for team in teams:

    print("Date", team, end='')

print("")

# print results

for date, results in point_hist.items():

    for team in teams

        print(date, results[team], end='')

    print("")

answered Nov 12 '18 at 21:38

Barmar

420k35244344

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

pts_scored should be a dictionary whose keys are the dates. The values should be another dictionary whose keys are team names and values are the scores.

def myfunct(conn, teams):

    curr = conn.cursor()

    pts_scored = {}



    curr.execute("select date, pts_scored, teams from db.teams")

    for i in curr:

        if i['teams'] in teams:

            if i['date'] not in pts_scored:

                pts_scores[i['date']] = {}

            point_hist[i['date']][i['teams'] = i['pts_scored']

You can then use a nested loop to print the table:

# print heading

for team in teams:

    print("Date", team, end='')

print("")

# print results

for date, results in point_hist.items():

    for team in teams

        print(date, results[team], end='')

    print("")

answered Nov 12 '18 at 21:38

Barmar

420k35244344

add a comment |

pts_scored should be a dictionary whose keys are the dates. The values should be another dictionary whose keys are team names and values are the scores.

def myfunct(conn, teams):

    curr = conn.cursor()

    pts_scored = {}



    curr.execute("select date, pts_scored, teams from db.teams")

    for i in curr:

        if i['teams'] in teams:

            if i['date'] not in pts_scored:

                pts_scores[i['date']] = {}

            point_hist[i['date']][i['teams'] = i['pts_scored']

You can then use a nested loop to print the table:

# print heading

for team in teams:

    print("Date", team, end='')

print("")

# print results

for date, results in point_hist.items():

    for team in teams

        print(date, results[team], end='')

    print("")

answered Nov 12 '18 at 21:38

Barmar

420k35244344

add a comment |

pts_scored should be a dictionary whose keys are the dates. The values should be another dictionary whose keys are team names and values are the scores.

def myfunct(conn, teams):

    curr = conn.cursor()

    pts_scored = {}



    curr.execute("select date, pts_scored, teams from db.teams")

    for i in curr:

        if i['teams'] in teams:

            if i['date'] not in pts_scored:

                pts_scores[i['date']] = {}

            point_hist[i['date']][i['teams'] = i['pts_scored']

You can then use a nested loop to print the table:

# print heading

for team in teams:

    print("Date", team, end='')

print("")

# print results

for date, results in point_hist.items():

    for team in teams

        print(date, results[team], end='')

    print("")

answered Nov 12 '18 at 21:38

Barmar

420k35244344

pts_scored should be a dictionary whose keys are the dates. The values should be another dictionary whose keys are team names and values are the scores.

def myfunct(conn, teams):

    curr = conn.cursor()

    pts_scored = {}



    curr.execute("select date, pts_scored, teams from db.teams")

    for i in curr:

        if i['teams'] in teams:

            if i['date'] not in pts_scored:

                pts_scores[i['date']] = {}

            point_hist[i['date']][i['teams'] = i['pts_scored']

You can then use a nested loop to print the table:

# print heading

for team in teams:

    print("Date", team, end='')

print("")

# print results

for date, results in point_hist.items():

    for team in teams

        print(date, results[team], end='')

    print("")

answered Nov 12 '18 at 21:38

Barmar

420k35244344

answered Nov 12 '18 at 21:38

Barmar

420k35244344

answered Nov 12 '18 at 21:38

Barmar

420k35244344

answered Nov 12 '18 at 21:38

Barmar

420k35244344

add a comment |

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