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How to use _read method in lisa

Best Python code snippet using lisa_python
machine.py
Source:machine.py
...31        return (self.magic_p + self.size_p + self.data)32    def getstr(self):33        return self.data34    def read_blog_data(self, _read):35        _read(self.getstr() + '\n')36class BlogAsciiFile():37    def __init__(self):38        self.filename = random_word()39        self.magic = 1387340        self.line_width = random.randint(20, 60)41        self.num_lines = random.randint(10, 30)42        self.magic_p = struct.pack('I', self.magic)43        self.line_width_p = struct.pack('H', self.line_width)44        self.num_lines_p = struct.pack('H', self.num_lines)45        self.data = ''46        for x in xrange(self.num_lines):47            self.data += random_word(self.line_width-1, self.line_width-1) + '\n'48    def getfile(self):49        return (self.magic_p + self.line_width_p + self.num_lines_p + self.data)50    def getstr(self):51        return self.data52    def read_blog_data(self, _read):53        _read(self.getstr() + '\n')54class BlogText():55    def __init__(self, text):56        self.text = text57    def read_blog_data(self, _read):58        _read("%s\n" % self.text)59def create_file():60    if random.randint(0,1):61        return BlogPictureFile()62    else:63        return BlogAsciiFile()64class Post():65    def __init__(self, owner, _read, _write):66        done = False67        self.owner = owner68        self.post_data = []69        self.title = random_text(5)70        self.likes = []71        _read("Enter post title: \n\t")72        _write("%s\n" % self.title)73        while not done:74            _read("Enter Post Text (end with: ```):\n")75            text = random_text()76            _write(text)77            _write("```\n")78            self.post_data.append(BlogText(text))79            if owner.is_full_user():80                _read("Upload Image?\n")81                _read("1. Yes\n")82                _read("2. No\n")83                _read("Selection: ")84                if random.randint(0,5) == 0:85                    _write("1\n")86                    blog_file = create_file()87                    _read("Enter Filename: ")88                    _write(blog_file.filename + '\n')89                    _read("--Begin Uploading File--\n")90                    _write(blog_file.getfile())91                    self.post_data.append(blog_file)92                else:93                    _write("2\n")94            _read("Add more Text?\n")95            _read("1. Yes\n")96            _read("2. No\n")97            _read("Selection: ")98            if random.randint(0,5) == 0:99                _write("1\n")100            else:101                _write("2\n")102                done = True103    def add_like(self, friend, _read):104        for like in self.likes:105            if like.username == friend.username:106                _read("You already liked this\n")107                return108        self.likes.append(friend)109        self.owner.total_likes += 1110    def read_post(self, _read):111        _read("Post by: %s\n" % self.owner.username)112        _read("---%s---\n" % self.title)113        for pdata in self.post_data:114            pdata.read_blog_data(_read)115    def read_title(self, _read):116        _read(self.title)117class User():118    def __init__(self, username, password, friendcode):119        self.username = username120        self.password = password121        self.friendcode = friendcode122        self.profile = ""123        self.total_likes = 0124        self.posts = []125        self.friends = []126    def is_full_user(self):127        if len(self.friends) >= 3 and len(self.posts) >= 5 and self.total_likes > 5:128            return True129        return False130    def update_profile(self, _write):131        self.profile = random_text()132        _write(self.profile)133        _write("```\n")134    def add_friend(self, friend, _read):135        if friend.username == self.username:136            _read("Trying to add self\n")137            return False138        for f in self.friends:139            if f.username == friend.username:140                return False141        self.friends.append(friend)142        return True143    def read_friend_list(self, _read):144        for i, friend in enumerate(self.friends):145            _read("%d - %s\n" % (i+1, friend.username))146    def read_post_list(self, _read):147        for i, post in enumerate(self.posts):148            _read("%d - %s\n" % (i+1, post.title))149    def read_profile(self, _read):150        _read("User %s's profile:\n" % self.username)151        if not self.profile:152            _read("No profile yet!\n")153        else:154            _read("%s\n" % self.profile)155class Blog(Actions):156    def _read(self, string):157        self.read(length=len(string), expect=string)158    def start(self):159        self.users = []160        self.state['logged_in_user'] = None161    def logged_out_menu(self):162        self._read("Select an option\n")163        self._read("1. Register\n")164        self._read("2. Log in\n")165        self._read("3. View a user's posts\n")166        self._read("4. View a user's profile\n")167        self._read("5. Quit\n")168        self._read("Selection: ")169    def register(self):170        self.write('1\n')171        username = random_word()172        password = random_word()173        friendcode = random_word()174        self._read("Enter username: ")175        self.write(username + "\n")176        for user in self.users:177            if user.username == username:178                self._read("Error: Username already exists. Try a different username\n")179                return180        self._read("Enter password: ")181        self.write(password + "\n")182        self._read("Friend code: ")183        self.write(friendcode + "\n")184        self.users.append(User(username, password, friendcode))185    def login(self):186        if not self.users:187            self.register()188            self.logged_out_menu()189        self.write("2\n")190        user = self.users[random.randint(0, len(self.users) - 1)]191        self.read("Username: ")192        self.write(user.username + "\n")193        self.read("Password: ")194        self.write(user.password + "\n")195        self._read("Authenticated\n")196        self.state['logged_in_user'] = user197    def view_user_posts_out(self):198        self.write("3\n")199        self._read("Enter username: ")200        if self.users:201            user = self.users[random.randint(0, len(self.users) - 1)]202        else:203            self.write("\n")204            self._read("Bad Username\n")205            return206        self.write(user.username + "\n")207        self._read("Select a post id to view\n")208        self._read("0. Go Back\n")209        user.read_post_list(self._read)210        self._read("Selection: ")211        if user.posts:212            choice = random.randint(0, len(user.posts))213            self.write("%d\n" % (choice))214            if choice == 0:215                self._read("Returning to main menu\n")216            else:217                post = user.posts[choice - 1]218                post.read_post(self._read)219        else:220            self.write("0\n")221            self._read("Returning to main menu\n")222    def view_user_profile_out(self):223        self.write("4\n")224        self._read("Enter username: ")225        if self.users:226            user = self.users[random.randint(0, len(self.users) - 1)]227        else:228            self.write("\n")229            self._read("Bad Username\n")230            return231        self.write(user.username + "\n")232        user.read_profile(self._read)233    def logged_in_menu(self):234        self._read("Select an option\n")235        self._read("1. Add new blog post\n")236        self._read("2. Delete blog post\n")237        self._read("3. Update profile\n")238        self._read("4. Add a friend\n")239        self._read("5. View my friends\n")240        self._read("6. Unfriend someone\n")241        self._read("7. View my posts\n")242        self._read("8. View my profile\n")243        self._read("9. View a user's posts\n")244        self._read("10. View a user's profile\n")245        self._read("11. Log out\n")246        self._read("Selection: ")247    def add_new_post(self):248        self.write("1\n")249        user = self.state['logged_in_user']250        post = Post(user, self._read, self.write)251        if post:252            user.posts.append(post)253    def delete_blog_post(self):254        self.write("2\n")255        user = self.state['logged_in_user']256        self._read("Select a post to delete:\n")257        self._read("0. Go Back\n")258        user.read_post_list(self._read)259        self._read("Selection: ")260        if user.posts:261            choice = random.randint(0, len(user.posts))262            self.write("%d\n" % (choice))263            if choice == 0:264                self._read("Returning to main menu\n")265            else:266                del user.posts[choice - 1]267        else:268            self.write("0\n")269            self._read("Returning to main menu\n")270    def update_profile(self):271        self.write("3\n")272        user = self.state['logged_in_user']273        self._read("Enter new profile info (end with: ```)\n")274        user.update_profile(self.write)275    def add_friend(self):276        self.write("4\n")277        user = self.state['logged_in_user']278        friend = self.users[random.randint(0, len(self.users) - 1)]279        self.read("Enter friend username: ")280        self.write(friend.username + "\n")281        self.read("Friend code: ")282        self.write(friend.friendcode + "\n")283        if user.add_friend(friend, self._read):284            self._read("Added friend, %s!\n" % friend.username)285        else:286            self._read("Couldn't add as friend.\n")287    def view_friends(self):288        self.write("5\n")289        user = self.state['logged_in_user']290        user.read_friend_list(self._read)291    def unfriend(self):292        self.write("6\n")293        user = self.state['logged_in_user']294        self._read("Select a user to unfriend:\n")295        self._read("0. Go Back\n")296        user.read_friend_list(self._read)297        self._read("Selection: ")298        if user.friends:299            choice = random.randint(0, len(user.friends))300            self.write("%d\n" % (choice))301            if choice == 0:302                self._read("Returning to main menu\n")303            else:304                del user.friends[choice - 1]305        else:306            self.write("0\n")307            self._read("Returning to main menu\n")308    def view_my_posts(self):309        self.write("7\n")310        user = self.state['logged_in_user']311        self._read("Select a post id to view\n")312        self._read("0. Go Back\n")313        user.read_post_list(self._read)314        self._read("Selection: ")315        if user.posts:316            choice = random.randint(0, len(user.posts))317            self.write("%d\n" % (choice))318            if choice == 0:319                self._read("Returning to main menu\n")320            else:321                post = user.posts[choice - 1]322                post.read_post(self._read)323        else:324            self.write("0\n")325            self._read("Returning to main menu\n")326    def view_my_profile(self):327        self.write("8\n")328        user = self.state['logged_in_user']329        user.read_profile(self._read)330        pass331    def view_user_posts_in(self):332        self.write("9\n")333        self._read("Enter username: ")334        cur_user = self.state['logged_in_user']335        if self.users:336            user = self.users[random.randint(0, len(self.users) - 1)]337        else:338            self.write("\n")339            self._read("Bad Username\n")340            return341        self.write(user.username + "\n")342        self._read("Select a post id to view\n")343        self._read("0. Go Back\n")344        user.read_post_list(self._read)345        self._read("Selection: ")346        if user.posts:347            choice = random.randint(0, len(user.posts))348            self.write("%d\n" % (choice))349            if choice == 0:350                self._read("Returning to main menu\n")351            else:352                post = user.posts[choice - 1]353                post.read_post(self._read)354                if cur_user.username != user.username:355                    self._read("Like Post?\n")356                    self._read("1. Yes\n")357                    self._read("2. No\n")358                    self._read("Selection: ")359                    if random.randint(0,1):360                        self.write("1\n")361                        post.add_like(cur_user, self._read)362                        self._read("Liked!\n")363                    else:364                        self.write("2\n")365        else:366            self.write("0\n")367            self._read("Returning to main menu\n")368    def view_user_profile_in(self):369        self.write("10\n")370        self._read("Enter username: ")371        if self.users:372            user = self.users[random.randint(0, len(self.users) - 1)]373        else:374            self.write("\n")375            self._read("Bad Username\n")376            return377        self.write(user.username + "\n")378        user.read_profile(self._read)379    def logout(self):380        self.write("11\n")381        self.state['logged_in_user'] = None382        self._read("Logging Out\n")383    def quit(self):384        self.write('5\n')...
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