英文:
reportlab doc.build(story) how to change output directory using asksaveasfilename tkinter?
问题
I use reportlab library while creating tkinter app on Python. Method doc.build(story) saves PDF-file to current directory. But I want to push the button and save this file to the chosen directory by myself via asksaveasfilename of tkinter. How can I do that?
def save_as_pdf(self, file_path=None):
pdfmetrics.registerFont(TTFont('DejaVuSerif', 'DejaVuSerif.ttf'))
doc = SimpleDocTemplate(f"{self.current_friend}_computers.pdf", pagesize=letter)
story = []
data= [self.table_computers.item(row_id)['values'] for row_id in self.table_computers.get_children()]
tblstyle = TableStyle([('FONT', (0, 0), (-1, len(data)-1), 'DejaVuSerif', 12)])
tbl = Table(data)
tbl.setStyle(tblstyle)
story.append(tbl)
if file_path is None:
file_path = asksaveasfilename(
filetypes=(
("PDF-файл", "*.pdf"),
("All files", "*.*"),
),
initialfile=(f"{self.current_friend}_computers.pdf"),
)
print(file_path)
doc.build(story)
As I said, method doc.build(story) saves PDF-file to the current directory. I want to save it in another directory.
I tried to find a file path command inside the build method. But it doesn't exist.
英文:
I use reportlab lyibrary while creating tkinter app on Python. Method doc.build(story) saves PDF-file to current directory. But I want to push the button and save this file to the chosen directory by myself via asksaveasfilename of tkinter. How can I do that?
def save_as_pdf(self, file_path=None):
pdfmetrics.registerFont(TTFont('DejaVuSerif', 'DejaVuSerif.ttf'))
doc = SimpleDocTemplate(f"{self.current_friend}_computers.pdf", pagesize=letter)
story = []
data= [self.table_computers.item(row_id)['values'] for row_id in self.table_computers.get_children()]
tblstyle = TableStyle([('FONT', (0, 0), (-1, len(data)-1), 'DejaVuSerif', 12)])
tbl = Table(data)
tbl.setStyle(tblstyle)
story.append(tbl)
if file_path is None:
file_path = asksaveasfilename(
filetypes=(
("PDF-файл", "*.pdf"),
("All files", "*.*"),
),
initialfile=(f"{self.current_friend}_computers.pdf"),
)
print(file_path)
doc.build(story)
As I said, method doc.build(story) saves PDF-file to current directory. I want to save in another
I tried to find a file path command inside of build method. But it doesn't exist
答案1
得分: 0
我找到了决定：
def save_as_pdf(self, file_path=None):
pdf_file = BytesIO()
pdfmetrics.registerFont(TTFont('DejaVuSerif', 'DejaVuSerif.ttf'))
doc = SimpleDocTemplate(pdf_file, pagesize=letter)
story = []
data = [self.table_computers.item(row_id)['values'] for row_id in self.table_computers.get_children()]
data.append([f'У вашего друга {self.current_friend} следующие компьютеры: '])
data.reverse()
tblstyle = TableStyle([('FONT', (0, 0), (-1, len(data) - 1), 'DejaVuSerif', 12)])
tbl = Table(data)
tbl.setStyle(tblstyle)
story.append(tbl)
if file_path is None:
file_path = asksaveasfilename(
filetypes=(
("PDF-файл", "*.pdf"),
("All files", "*.*"),
),
initialfile=(f"{self.current_friend}_computers.pdf"),
)
doc.build(story)
pdf_file.seek(0)
with open(file_path, 'wb') as f:
f.write(pdf_file.getbuffer())
英文:
I have found the decision
def save_as_pdf(self, file_path=None):
pdf_file =BytesIO()
pdfmetrics.registerFont(TTFont('DejaVuSerif', 'DejaVuSerif.ttf'))
doc = SimpleDocTemplate(pdf_file, pagesize=letter)
story = []
data= [self.table_computers.item(row_id)['values'] for row_id in self.table_computers.get_children()]
data.append([f'У вашего друга {self.current_friend} следующие компьютеры: '])
data.reverse()
tblstyle = TableStyle([('FONT', (0, 0), (-1, len(data)-1), 'DejaVuSerif', 12)])
tbl = Table(data)
tbl.setStyle(tblstyle)
story.append(tbl)
if file_path is None:
file_path = asksaveasfilename(
filetypes=(
("PDF-файл", "*.pdf"),
("All files", "*.*"),
),
initialfile=(f"{self.current_friend}_computers.pdf"),
)
doc.build(story)
pdf_file.seek(0)
with open(file_path, 'wb') as f:
f.write(pdf_file.getbuffer())
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