pip install pyperclip

cmd
当显示Successfully installed pyperclip时,说明安装成功了
可以在Python IDE中输入这行内容测试:

import pyperclip
Pyperclip的主要用法有两个:
  • 1、复制内容到剪贴板
  • 2、粘贴剪贴板里的内容

我们先来看第一个,复制内容

import pyperclip as pc #导入模块
pc.copy("Hello")

可以看到,剪贴板里多出了内容Hello

当然,也可以这么写

import pyperclip
pyperclip.copy("Hello")
Pyperclip也可以复制字符串变量
import pyperclip as pc
text = "Hello,world"
pc.copy(text)
来说说第二个功能,粘贴内容
import pyperclip as pc
pc.copy("I love Programming")
pc.paste()
Pyperclip的源代码
Pyperclip A cross-platform clipboard module for Python, with copy & paste functions for plain text. By Al Sweigart al@inventwithpython.com BSD License Usage: import pyperclip pyperclip.copy('The text to be copied to the clipboard.') spam = pyperclip.paste() if not pyperclip.is_available(): print("Copy functionality unavailable!") On Windows, no additional modules are needed. On Mac, the pyobjc module is used, falling back to the pbcopy and pbpaste cli commands. (These commands should come with OS X.). On Linux, install xclip or xsel via package manager. For example, in Debian: sudo apt-get install xclip sudo apt-get install xsel Otherwise on Linux, you will need the gtk or PyQt5/PyQt4 modules installed. gtk and PyQt4 modules are not available for Python 3, and this module does not work with PyGObject yet. Note: There seems to be a way to get gtk on Python 3, according to: https://askubuntu.com/questions/697397/python3-is-not-supporting-gtk-module Cygwin is currently not supported. Security Note: This module runs programs with these names: - which - where - pbcopy - pbpaste - xclip - xsel - klipper - qdbus A malicious user could rename or add programs with these names, tricking Pyperclip into running them with whatever permissions the Python process has. __version__ = '1.7.0' import contextlib import ctypes import os import platform import subprocess import sys import time import warnings from ctypes import c_size_t, sizeof, c_wchar_p, get_errno, c_wchar # `import PyQt4` sys.exit()s if DISPLAY is not in the environment. # Thus, we need to detect the presence of $DISPLAY manually # and not load PyQt4 if it is absent. HAS_DISPLAY = os.getenv("DISPLAY", False) EXCEPT_MSG = """ Pyperclip could not find a copy/paste mechanism for your system. For more information, please visit https://pyperclip.readthedocs.io/en/latest/introduction.html#not-implemented-error """ PY2 = sys.version_info[0] == 2 STR_OR_UNICODE = unicode if PY2 else str # For paste(): Python 3 uses str, Python 2 uses unicode. ENCODING = 'utf-8' # The "which" unix command finds where a command is. if platform.system() == 'Windows': WHICH_CMD = 'where' else: WHICH_CMD = 'which' def _executable_exists(name): return subprocess.call([WHICH_CMD, name], stdout=subprocess.PIPE, stderr=subprocess.PIPE) == 0 # Exceptions class PyperclipException(RuntimeError): class PyperclipWindowsException(PyperclipException): def __init__(self, message): message += " (%s)" % ctypes.WinError() super(PyperclipWindowsException, self).__init__(message) def _stringifyText(text): if PY2: acceptedTypes = (unicode, str, int, float, bool) else: acceptedTypes = (str, int, float, bool) if not isinstance(text, acceptedTypes): raise PyperclipException('only str, int, float, and bool values can be copied to the clipboard, not %s' % (text.__class__.__name__)) return STR_OR_UNICODE(text) def init_osx_pbcopy_clipboard(): def copy_osx_pbcopy(text): text = _stringifyText(text) # Converts non-str values to str. p = subprocess.Popen(['pbcopy', 'w'], stdin=subprocess.PIPE, close_fds=True) p.communicate(input=text.encode(ENCODING)) def paste_osx_pbcopy(): p = subprocess.Popen(['pbpaste', 'r'], stdout=subprocess.PIPE, close_fds=True) stdout, stderr = p.communicate() return stdout.decode(ENCODING) return copy_osx_pbcopy, paste_osx_pbcopy def init_osx_pyobjc_clipboard(): def copy_osx_pyobjc(text): '''Copy string argument to clipboard''' text = _stringifyText(text) # Converts non-str values to str. newStr = Foundation.NSString.stringWithString_(text).nsstring() newData = newStr.dataUsingEncoding_(Foundation.NSUTF8StringEncoding) board = AppKit.NSPasteboard.generalPasteboard() board.declareTypes_owner_([AppKit.NSStringPboardType], None) board.setData_forType_(newData, AppKit.NSStringPboardType) def paste_osx_pyobjc(): "Returns contents of clipboard" board = AppKit.NSPasteboard.generalPasteboard() content = board.stringForType_(AppKit.NSStringPboardType) return content return copy_osx_pyobjc, paste_osx_pyobjc def init_gtk_clipboard(): global gtk import gtk def copy_gtk(text): global cb text = _stringifyText(text) # Converts non-str values to str. cb = gtk.Clipboard() cb.set_text(text) cb.store() def paste_gtk(): clipboardContents = gtk.Clipboard().wait_for_text() # for python 2, returns None if the clipboard is blank. if clipboardContents is None: return '' else: return clipboardContents return copy_gtk, paste_gtk def init_qt_clipboard(): global QApplication # $DISPLAY should exist # Try to import from qtpy, but if that fails try PyQt5 then PyQt4 try: from qtpy.QtWidgets import QApplication except: try: from PyQt5.QtWidgets import QApplication except: from PyQt4.QtGui import QApplication app = QApplication.instance() if app is None: app = QApplication([]) def copy_qt(text): text = _stringifyText(text) # Converts non-str values to str. cb = app.clipboard() cb.setText(text) def paste_qt(): cb = app.clipboard() return STR_OR_UNICODE(cb.text()) return copy_qt, paste_qt def init_xclip_clipboard(): DEFAULT_SELECTION='c' PRIMARY_SELECTION='p' def copy_xclip(text, primary=False): text = _stringifyText(text) # Converts non-str values to str. selection=DEFAULT_SELECTION if primary: selection=PRIMARY_SELECTION p = subprocess.Popen(['xclip', '-selection', selection], stdin=subprocess.PIPE, close_fds=True) p.communicate(input=text.encode(ENCODING)) def paste_xclip(primary=False): selection=DEFAULT_SELECTION if primary: selection=PRIMARY_SELECTION p = subprocess.Popen(['xclip', '-selection', selection, '-o'], stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True) stdout, stderr = p.communicate() # Intentionally ignore extraneous output on stderr when clipboard is empty return stdout.decode(ENCODING) return copy_xclip, paste_xclip def init_xsel_clipboard(): DEFAULT_SELECTION='-b' PRIMARY_SELECTION='-p' def copy_xsel(text, primary=False): text = _stringifyText(text) # Converts non-str values to str. selection_flag = DEFAULT_SELECTION if primary: selection_flag = PRIMARY_SELECTION p = subprocess.Popen(['xsel', selection_flag, '-i'], stdin=subprocess.PIPE, close_fds=True) p.communicate(input=text.encode(ENCODING)) def paste_xsel(primary=False): selection_flag = DEFAULT_SELECTION if primary: selection_flag = PRIMARY_SELECTION p = subprocess.Popen(['xsel', selection_flag, '-o'], stdout=subprocess.PIPE, close_fds=True) stdout, stderr = p.communicate() return stdout.decode(ENCODING) return copy_xsel, paste_xsel def init_klipper_clipboard(): def copy_klipper(text): text = _stringifyText(text) # Converts non-str values to str. p = subprocess.Popen( ['qdbus', 'org.kde.klipper', '/klipper', 'setClipboardContents', text.encode(ENCODING)], stdin=subprocess.PIPE, close_fds=True) p.communicate(input=None) def paste_klipper(): p = subprocess.Popen( ['qdbus', 'org.kde.klipper', '/klipper', 'getClipboardContents'], stdout=subprocess.PIPE, close_fds=True) stdout, stderr = p.communicate() # Workaround for https://bugs.kde.org/show_bug.cgi?id=342874 # TODO: https://github.com/asweigart/pyperclip/issues/43 clipboardContents = stdout.decode(ENCODING) # even if blank, Klipper will append a newline at the end assert len(clipboardContents) > 0 # make sure that newline is there assert clipboardContents.endswith('\n') if clipboardContents.endswith('\n'): clipboardContents = clipboardContents[:-1] return clipboardContents return copy_klipper, paste_klipper def init_dev_clipboard_clipboard(): def copy_dev_clipboard(text): text = _stringifyText(text) # Converts non-str values to str. if text == '': warnings.warn('Pyperclip cannot copy a blank string to the clipboard on Cygwin. This is effectively a no-op.') if '\r' in text: warnings.warn('Pyperclip cannot handle \\r characters on Cygwin.') fo = open('/dev/clipboard', 'wt') fo.write(text) fo.close() def paste_dev_clipboard(): fo = open('/dev/clipboard', 'rt') content = fo.read() fo.close() return content return copy_dev_clipboard, paste_dev_clipboard def init_no_clipboard(): class ClipboardUnavailable(object): def __call__(self, *args, **kwargs): raise PyperclipException(EXCEPT_MSG) if PY2: def __nonzero__(self): return False else: def __bool__(self): return False return ClipboardUnavailable(), ClipboardUnavailable() # Windows-related clipboard functions: class CheckedCall(object): def __init__(self, f): super(CheckedCall, self).__setattr__("f", f) def __call__(self, *args): ret = self.f(*args) if not ret and get_errno(): raise PyperclipWindowsException("Error calling " + self.f.__name__) return ret def __setattr__(self, key, value): setattr(self.f, key, value) def init_windows_clipboard(): global HGLOBAL, LPVOID, DWORD, LPCSTR, INT, HWND, HINSTANCE, HMENU, BOOL, UINT, HANDLE from ctypes.wintypes import (HGLOBAL, LPVOID, DWORD, LPCSTR, INT, HWND, HINSTANCE, HMENU, BOOL, UINT, HANDLE) windll = ctypes.windll msvcrt = ctypes.CDLL('msvcrt') safeCreateWindowExA = CheckedCall(windll.user32.CreateWindowExA) safeCreateWindowExA.argtypes = [DWORD, LPCSTR, LPCSTR, DWORD, INT, INT, INT, INT, HWND, HMENU, HINSTANCE, LPVOID] safeCreateWindowExA.restype = HWND safeDestroyWindow = CheckedCall(windll.user32.DestroyWindow) safeDestroyWindow.argtypes = [HWND] safeDestroyWindow.restype = BOOL OpenClipboard = windll.user32.OpenClipboard OpenClipboard.argtypes = [HWND] OpenClipboard.restype = BOOL safeCloseClipboard = CheckedCall(windll.user32.CloseClipboard) safeCloseClipboard.argtypes = [] safeCloseClipboard.restype = BOOL safeEmptyClipboard = CheckedCall(windll.user32.EmptyClipboard) safeEmptyClipboard.argtypes = [] safeEmptyClipboard.restype = BOOL safeGetClipboardData = CheckedCall(windll.user32.GetClipboardData) safeGetClipboardData.argtypes = [UINT] safeGetClipboardData.restype = HANDLE safeSetClipboardData = CheckedCall(windll.user32.SetClipboardData) safeSetClipboardData.argtypes = [UINT, HANDLE] safeSetClipboardData.restype = HANDLE safeGlobalAlloc = CheckedCall(windll.kernel32.GlobalAlloc) safeGlobalAlloc.argtypes = [UINT, c_size_t] safeGlobalAlloc.restype = HGLOBAL safeGlobalLock = CheckedCall(windll.kernel32.GlobalLock) safeGlobalLock.argtypes = [HGLOBAL] safeGlobalLock.restype = LPVOID safeGlobalUnlock = CheckedCall(windll.kernel32.GlobalUnlock) safeGlobalUnlock.argtypes = [HGLOBAL] safeGlobalUnlock.restype = BOOL wcslen = CheckedCall(msvcrt.wcslen) wcslen.argtypes = [c_wchar_p] wcslen.restype = UINT GMEM_MOVEABLE = 0x0002 CF_UNICODETEXT = 13 @contextlib.contextmanager def window(): Context that provides a valid Windows hwnd. # we really just need the hwnd, so setting "STATIC" # as predefined lpClass is just fine. hwnd = safeCreateWindowExA(0, b"STATIC", None, 0, 0, 0, 0, 0, None, None, None, None) try: yield hwnd finally: safeDestroyWindow(hwnd) @contextlib.contextmanager def clipboard(hwnd): Context manager that opens the clipboard and prevents other applications from modifying the clipboard content. # We may not get the clipboard handle immediately because # some other application is accessing it (?) # We try for at least 500ms to get the clipboard. t = time.time() + 0.5 success = False while time.time() < t: success = OpenClipboard(hwnd) if success: break time.sleep(0.01) if not success: raise PyperclipWindowsException("Error calling OpenClipboard") try: yield finally: safeCloseClipboard() def copy_windows(text): # This function is heavily based on # http://msdn.com/ms649016#_win32_Copying_Information_to_the_Clipboard text = _stringifyText(text) # Converts non-str values to str. with window() as hwnd: # http://msdn.com/ms649048 # If an application calls OpenClipboard with hwnd set to NULL, # EmptyClipboard sets the clipboard owner to NULL; # this causes SetClipboardData to fail. # => We need a valid hwnd to copy something. with clipboard(hwnd): safeEmptyClipboard() if text: # http://msdn.com/ms649051 # If the hMem parameter identifies a memory object, # the object must have been allocated using the # function with the GMEM_MOVEABLE flag. count = wcslen(text) + 1 handle = safeGlobalAlloc(GMEM_MOVEABLE, count * sizeof(c_wchar)) locked_handle = safeGlobalLock(handle) ctypes.memmove(c_wchar_p(locked_handle), c_wchar_p(text), count * sizeof(c_wchar)) safeGlobalUnlock(handle) safeSetClipboardData(CF_UNICODETEXT, handle) def paste_windows(): with clipboard(None): handle = safeGetClipboardData(CF_UNICODETEXT) if not handle: # GetClipboardData may return NULL with errno == NO_ERROR # if the clipboard is empty. # (Also, it may return a handle to an empty buffer, # but technically that's not empty) return "" return c_wchar_p(handle).value return copy_windows, paste_windows def init_wsl_clipboard(): def copy_wsl(text): text = _stringifyText(text) # Converts non-str values to str. p = subprocess.Popen(['clip.exe'], stdin=subprocess.PIPE, close_fds=True) p.communicate(input=text.encode(ENCODING)) def paste_wsl(): p = subprocess.Popen(['powershell.exe', '-command', 'Get-Clipboard'], stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True) stdout, stderr = p.communicate() # WSL appends "\r\n" to the contents. return stdout[:-2].decode(ENCODING) return copy_wsl, paste_wsl # Automatic detection of clipboard mechanisms and importing is done in deteremine_clipboard(): def determine_clipboard(): Determine the OS/platform and set the copy() and paste() functions accordingly. global Foundation, AppKit, gtk, qtpy, PyQt4, PyQt5 # Setup for the CYGWIN platform: if 'cygwin' in platform.system().lower(): # Cygwin has a variety of values returned by platform.system(), such as 'CYGWIN_NT-6.1' # FIXME: pyperclip currently does not support Cygwin, # see https://github.com/asweigart/pyperclip/issues/55 if os.path.exists('/dev/clipboard'): warnings.warn('Pyperclip\'s support for Cygwin is not perfect, see https://github.com/asweigart/pyperclip/issues/55') return init_dev_clipboard_clipboard() # Setup for the WINDOWS platform: elif os.name == 'nt' or platform.system() == 'Windows': return init_windows_clipboard() if platform.system() == 'Linux': with open('/proc/version', 'r') as f: if "Microsoft" in f.read(): return init_wsl_clipboard() # Setup for the MAC OS X platform: if os.name == 'mac' or platform.system() == 'Darwin': try: import Foundation # check if pyobjc is installed import AppKit except ImportError: return init_osx_pbcopy_clipboard() else: return init_osx_pyobjc_clipboard() # Setup for the LINUX platform: if HAS_DISPLAY: try: import gtk # check if gtk is installed except ImportError: pass # We want to fail fast for all non-ImportError exceptions. else: return init_gtk_clipboard() if _executable_exists("xsel"): return init_xsel_clipboard() if _executable_exists("xclip"): return init_xclip_clipboard() if _executable_exists("klipper") and _executable_exists("qdbus"): return init_klipper_clipboard() try: # qtpy is a small abstraction layer that lets you write applications using a single api call to either PyQt or PySide. # https://pypi.python.org/pypi/QtPy import qtpy # check if qtpy is installed except ImportError: # If qtpy isn't installed, fall back on importing PyQt4. try: import PyQt5 # check if PyQt5 is installed except ImportError: try: import PyQt4 # check if PyQt4 is installed except ImportError: pass # We want to fail fast for all non-ImportError exceptions. else: return init_qt_clipboard() else: return init_qt_clipboard() else: return init_qt_clipboard() return init_no_clipboard() def set_clipboard(clipboard): Explicitly sets the clipboard mechanism. The "clipboard mechanism" is how the copy() and paste() functions interact with the operating system to implement the copy/paste feature. The clipboard parameter must be one of: - pbcopy - pbobjc (default on Mac OS X) - gtk - xclip - xsel - klipper - windows (default on Windows) - no (this is what is set when no clipboard mechanism can be found) global copy, paste clipboard_types = {'pbcopy': init_osx_pbcopy_clipboard, 'pyobjc': init_osx_pyobjc_clipboard, 'gtk': init_gtk_clipboard, 'qt': init_qt_clipboard, # TODO - split this into 'qtpy', 'pyqt4', and 'pyqt5' 'xclip': init_xclip_clipboard, 'xsel': init_xsel_clipboard, 'klipper': init_klipper_clipboard, 'windows': init_windows_clipboard, 'no': init_no_clipboard} if clipboard not in clipboard_types: raise ValueError('Argument must be one of %s' % (', '.join([repr(_) for _ in clipboard_types.keys()]))) # Sets pyperclip's copy() and paste() functions: copy, paste = clipboard_types[clipboard]() def lazy_load_stub_copy(text): A stub function for copy(), which will load the real copy() function when called so that the real copy() function is used for later calls. This allows users to import pyperclip without having determine_clipboard() automatically run, which will automatically select a clipboard mechanism. This could be a problem if it selects, say, the memory-heavy PyQt4 module but the user was just going to immediately call set_clipboard() to use a different clipboard mechanism. The lazy loading this stub function implements gives the user a chance to call set_clipboard() to pick another clipboard mechanism. Or, if the user simply calls copy() or paste() without calling set_clipboard() first, will fall back on whatever clipboard mechanism that determine_clipboard() automatically chooses. global copy, paste copy, paste = determine_clipboard() return copy(text) def lazy_load_stub_paste(): A stub function for paste(), which will load the real paste() function when called so that the real paste() function is used for later calls. This allows users to import pyperclip without having determine_clipboard() automatically run, which will automatically select a clipboard mechanism. This could be a problem if it selects, say, the memory-heavy PyQt4 module but the user was just going to immediately call set_clipboard() to use a different clipboard mechanism. The lazy loading this stub function implements gives the user a chance to call set_clipboard() to pick another clipboard mechanism. Or, if the user simply calls copy() or paste() without calling set_clipboard() first, will fall back on whatever clipboard mechanism that determine_clipboard() automatically chooses. global copy, paste copy, paste = determine_clipboard() return paste() def is_available(): return copy != lazy_load_stub_copy and paste != lazy_load_stub_paste copy, paste = lazy_load_stub_copy, lazy_load_stub_paste __all__ = ['copy', 'paste', 'set_clipboard', 'determine_clipboard'] 在这个信息化快速发展的时代,高效的信息处理变得尤为关键。Python,作为一门强大的编程语言,其灵活性以及多样的库函数,使其成为处理信息不可或缺的利器。在此背景下,我决定分享我对其中两个实用Python库——Pyperclip和CnOCR的理解和使用,以帮助大家在日常工作和学习中提高效率。 首先,我们将会详细探讨Pyperclip,这是一个简洁高效的跨平台剪贴板库,让我们可以轻松地在Python代码和系统剪贴板之间传输文本数据。随后,我们将介绍OCR技术及其在Python中的应用,尤其是CnOCR库的强大功 pandas 里面有一个 pd.read_clipboard 函数,可以根据你复制的内容生成DataFrame。是的,就是我们平时选中,然后 Ctrl+C 时拷贝的内容。所以比较神奇,那么 pandas 到底是怎么做到的,它是怎么读出我们使用 Ctrl +C 复制的内容呢。看了一下源码,不同的操作系统使用的复制方式不同,Windows 比较复杂,方法是使用了ctypes,然后调用了操作系统的一个动态库实现的;而 macOS 和 Linux 比较简单,调用的是内置的命令。 Pyperclip - Python 的剪贴板实用程序库 Pyperclip 是一个用于跨平台复制和粘贴的简单 Python 库。它允许您在不同的操作系统(如 Windows、macOS 和 Linux)之间轻松地将文本从一个应用程序复制到另一个应用程序。 Pyperclip 能用来做什么? 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