前言有没有发现一个生活中的现象,我们很少有时间去真正读一些存放在电脑或者ipad上的PDF书籍。我们打算读这些书,但从来没有读过。所以我们为什么不用Python把它们做成有声书,一边听一边做别的事情呢?我们计划Python脚本步骤是这样的:允许用户选择读取一个.pdf文件将文件内容转换为一个字符串输出的mp3音频文件
Python可以轻松地读取文件。我只需要使用open(“filelocation”,“rb”)在读取模式下打开文件。但我不想每次使用代码时都要将文件复制并粘贴到代码目录中。因此,为了使它更容易,我们将使用tkinter库来打开一个让我们选择文件的接口: from tkinter import Tkfrom tkinter.filedialog import askopenfilenameTk().withdraw() # we don't want a full GUI, so keep the root window from appearingfilelocation = askopenfilename() # open the dialog GUI 太好了。现在,我们将文件位置存储在filelocation变量中。将文件转换为一个字符串如前所述,要在Python中打开文件,我们只需要使用open()方法。但是我们还希望将pdf文件转换为常规文本。为此,我们将使用一个名为pdftotext的库。先安装: sudo pip install pdftotext 然后: from tkinter import Tkfrom tkinter.filedialog import askopenfilenameimport pdftotextTk().withdraw() # we don't want a full GUI, so keep the root window from appearingfilelocation = askopenfilename() # open the dialog GUIwith open(filelocation, "rb") as f: # open the file in reading (rb) mode and call it f pdf = pdftotext.PDF(f) # store a text version of the pdf file f in pdf variable 如果您打印这个变量,您将得到一个字符串数组。每个字符串都是文件中的一行。要将它们全部存储到一个.mp3文件中,我们必须确保它们都存储为一个字符串。让我们循环这个数组并将它们全部添加到一个字符串中: from tkinter import Tkfrom tkinter.filedialog import askopenfilenameimport pdftotextTk().withdraw() # we don't want a full GUI, so keep the root window from appearingfilelocation = askopenfilename() # open the dialog GUIwith open(filelocation, "rb") as f: # open the file in reading (rb) mode and call it f pdf = pdftotext.PDF(f) # store a text version of the pdf file f in pdf variablestring_of_text = ''for text in pdf: string_of_text = text输出.mp3文件现在,我们准备使用gTTS(谷歌文本到语音)库。我们所需要做的就是传递我们创建的字符串,将输出存储在一个变量中,然后使用save()方法将文件输出到计算机。 先安装: sudo pip install gtts 然后: from tkinter import Tkfrom tkinter.filedialog import askopenfilenameimport pdftotextfrom gtts import gTTSTk().withdraw() # we don't want a full GUI, so keep the root window from appearingfilelocation = askopenfilename() # open the dialog GUIwith open(filelocation, "rb") as f: # open the file in reading (rb) mode and call it f pdf = pdftotext.PDF(f) # store a text version of the pdf file f in pdf variablestring_of_text = ''for text in pdf: string_of_text = textfinal_file = gTTS(text=string_of_text, lang='en') # store file in variablefinal_file.save("Generated Speech.mp3") # save file to computer 就这么简单!快去拿你的pdf去尝试吧。参考: https://dev.to/mustafaanaskh99/convert-any-pdf-file-into-an-audio-book-with-python-1gk4