Created
September 15, 2019 13:59
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| #Mock Classes that simulate a Pandas frame | |
| class loc_class: | |
| def __init__(self): | |
| self.rows = [] | |
| self.csv_df = None | |
| def add_row(self, item): | |
| self.rows.append(item) | |
| def __getitem__(self, key): | |
| return self.rows[key] | |
| class csv_data_frame: | |
| def __init__(self): | |
| self.size = 0 | |
| self.header = {} | |
| self.reverse_key = {} | |
| def generate_row_alias(self, row): | |
| insert_key = {} | |
| for key in self.reverse_key.keys(): | |
| insert_key[self.reverse_key[key]] = row[key] | |
| return insert_key | |
| def read_csv(self,filename): | |
| self.loc = loc_class() | |
| with open(filename,'rt')as f: | |
| data = csv.reader(f) | |
| row_val = 0 | |
| for row in data: | |
| if row_val == 0 : | |
| for i in range(len(row)): | |
| self.header[row[i]] = [] | |
| self.reverse_key[i] = row[i] | |
| else: | |
| for i in range(len(row)): | |
| header_key = self.reverse_key[i] | |
| self.header[header_key].append(row[i]) | |
| self.loc.add_row(self.generate_row_alias(row)) | |
| row_val = row_val + 1 | |
| self.size = row_val | |
| def __len__(self): | |
| return self.size-1 | |
| def print_matrix(data): | |
| for lin in data: | |
| print("+---"*len(lin)+"+") | |
| for inlin in lin: | |
| print("|",str(inlin),"", end="") | |
| print("|") | |
| print("+---"*len(lin)+"+") |
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