GeezerVisonThe World Wide Web, restored to 800 pixels of glory. |
| Home|About|Gaming cabinet|Archives|How it works|Starter sites |
GeezerVison is showing github.com — pythonrunscript/bin/pythonrunscript at main · AnswerDotAI/pythonrunscript Expand file tree/ Copy pathpythonrunscriptMore file actions executable file ·585 lines (507 loc) · 24.9 KB / Copy pathpythonrunscriptFile metadata and controlsexecutable file ·585 lines (507 loc) · 24.9 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 #!/usr/bin/env python3 # python>=3.9.6 import sys, re, os, subprocess, hashlib, logging, platform, argparse, tempfile, shutil, uuid, textwrap, shlex from abc import ABC from enum import Enum from typing import NoReturn, Union logging.basicConfig(level=logging.WARNING) Log = Enum('Log', ['SILENT','ERRORS','VERBOSE']) version_str = "0.2.0 (2024-10-07)" def main(): parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter) parser.description='Runs a script, installing its dependencies in a cached, isolated environment' parser.add_argument('--dry-run', action='store_true', help='report what pythonrunscript would do, without writing any files') parser.add_argument('--version', action='store_true', help='prints current version') parser.add_argument('--verbose', action='store_true', help='comments on actions and prints all outputs and errors') parser.add_argument('--show-cache', action='store_true', help='print the cache directory of script environments') parser.add_argument('--clean-cache', action='store_true', help='purges all pythonrunscript environments') parser.add_argument('script', nargs='?', default=None, help='path to the script to run') parser.add_argument('arguments', nargs=argparse.REMAINDER, help='optional arguments to be passed to that script') parser.epilog=''' pythonrunscript runs Python scripts, installing their dependencies. That is, it will automatically install all dependencies in a cached, isolated environment dedicated to your script, and run it in that environment. To do this it looks in your script for a comment declaring dependencies using the inline metadata syntax defined in PEP723. This syntax uses a "type" tag to indicate the type of dependency meatadata. You use the type tag pythonrunscript-requirements-txt in order to embed an ordinary requirements.txt file, like so: # /// pythonrunscript-requirements-txt # tqdm==4.66.4 # /// You can also use the type pythonrunscript-environment-yml to embed an environment.yml file, or pythonrunscript-conda-install-specs-txt to embed a list of conda install specs. A conda install spec is just the syntax for arguments passed to `conda install`. It is documented here: https://conda.io/projects/conda/en/latest/user-guide/concepts/pkg-search.html To run a script with conda dependencies or which specifies the python version, you must already have conda installed. Finally, pythonrunscript also supports the "script" type, which is the TOML-like syntax given as an initial example in PEP723. It looks like so: # /// script # dependencies = [ # "tqdm==4.66.4", # ] # /// You can explicitly call pythonrunscript to run your script by doing `pythonrunscript myscript.py`. Or you can change your script's first line to use pythonrunscript as an interpreter (setting its first line to "#!/usr/bin/env pythonrunscript"), and then execute your script directly. pythonrunscript requires Python 3.9.6 and later, which ships with macOS Sonoma. Since it creates isolated environments, you can run it using the system's Python without corrupting the system. It also works on Linux. Untested on Windows. ''' args = parser.parse_args() if sys.version_info < (3,9,6): print(f"I am being interpreted by Python version:\n{sys.version}") # pyright: ignore print("But I need python version 3.9.6 or higher.\nAborting.") # pyright: ignore exit(1) # pyright: ignore elif args.version: print(f"pythonrunscript {version_str}") exit(0) elif are_dependencies_missing(): print(f"I am being run on the platform {platform.system()} and") print("I cannot find the required external commands bash and tee, so") print("I probably will not work. Aborting.") exit(1) elif args.show_cache: print_base_dirs() exit(0) elif args.clean_cache: pseudo_erase_dir(cache_base()) exit(0) elif args.script is None: print(f"Error: pythonrunscript must be called with either the path to a script, --show-cache, --clean-cache, or --help.") exit(1) else: script = args.script if not os.path.exists(script): print(f"Error: did not find the script {script}. Nothing to do.") exit(1) if args.dry_run: print("## This is a dry run. No files will be written.\n") if args.verbose: logging.info("Running in verbose") proj = Project.make_project(script,args.verbose,args.dry_run) if args.dry_run: perform_dry_run(proj) exit(0) if isinstance(proj, ProjectNoDeps): logging.info("No pip block and no conda block detected. Running directly") if args.verbose: print("## No dependencies needed. Running the script directly") proj.run(args.arguments) elif not proj.exists(): logging.info("Needs an environment but none exists. Creating it") creation_success = proj.create() if not creation_success: trashed_env = pseudo_erase_dir(proj.project_path) print(f"## Creating a managed environment failed. Moved the broken environment to {trashed_env}",file=sys.stderr) exit(1) else: logging.info(f"Found pre-existing project dir: {proj.project_path}") if args.verbose: print(f"## Found pre-existing project dir: {proj.project_path}") # assert: proj exists if args.verbose: print("## Running the script using the project directory environment") proj.run(args.arguments) def perform_dry_run(proj): "Describes actions for exists(), creates(), runs()" print("## After parsing, I would take these actions.\n") if isinstance(proj, ProjectNoDeps): print(f"## No project directory is needed since parsing found no dependencies in the file {proj.script}\n") print(f"## In a live run, I would run the script using the first python3 in your PATH.\n") print_python3_path() return elif not proj.exists(): print(f"## The needed project directory does not exist so I would create this project directory:\n{proj.project_path}\n") print(f"## Inside, I would create this environment directory:\n{proj.envdir}\n") if proj.conda_envyml: print(f"## I found an environment.yml dependency block, so I'd use that.") print(f"## To install conda dependencies, I'd execute this conda environment creation command:\n") install_env_f = os.path.join(proj.project_path,'environment.yml') print(f"\t{make_conda_install_yml_command(proj.project_path,install_env_f)}\n") elif proj.conda_specs: print(f"## I found a conda_install_specs.txt block, so I'd use that.") print(f"## To install conda dependencies, I'd execute this conda install command:") install_spec_f = os.path.join(proj.project_path,'conda_install_specs.txt') print(f"{make_conda_install_spec_command(proj.project_path, install_spec_f)}\n") if proj.pip_requirements: print(f"## To install pip dependencies, I'd execute the following pip command:") print(f"python3 -m pip install -r {os.path.join(proj.envdir,'requirements.txt')}\n") print_python3_path() print(f"## At this point, this project directory would exist:\n{proj.project_path}\n") print(f"## I'd run using this env dir:\n{proj.envdir}\n") return def parse_dependencies(script, verbose=False) -> tuple[str,str,str,str]: "Parses script and returns any conda or pip dep blocks" LT = Enum('LT', [ 'BEG_SCRIPT_YML', 'BEG_CONDA_SPEC_YML','BEG_CONDA_ENV_YML','BEG_PIP_YML','END_YML', 'BEG_CONDA_SPEC','BEG_CONDA_ENV','BEG_PIP','END', 'TEXT']) p = { LT.BEG_SCRIPT_YML : r"^# /// script$", LT.BEG_CONDA_SPEC_YML : r"^# /// pythonrunscript-conda-install-specs-txt$", LT.BEG_CONDA_ENV_YML : r"^# /// pythonrunscript-environment-yml$", LT.BEG_PIP_YML : r"^# /// pythonrunscript-requirements-txt$", LT.END_YML : r"^# ///$", LT.BEG_CONDA_SPEC : r"^# ```conda_install_specs.txt$", LT.BEG_CONDA_ENV : r"^# ```environment.yml$", LT.BEG_PIP : r"^# ```requirements.txt$", LT.END : r"^# ```$", LT.TEXT : r"^#(| .*)$", } boxed_pip_block = [''] boxed_conda_spec_block = [''] boxed_conda_env_block = [''] block_type_content_delimiters = [ ('script',[], [(LT.BEG_SCRIPT_YML,LT.END_YML)]), ('requirements.txt', boxed_pip_block, [(LT.BEG_PIP_YML,LT.END_YML), (LT.BEG_PIP,LT.END),]), ('conda_install_specs.txt', boxed_conda_spec_block, [(LT.BEG_CONDA_SPEC_YML,LT.END_YML), (LT.BEG_CONDA_SPEC,LT.END),]), ('environment.yml', boxed_conda_env_block, [(LT.BEG_CONDA_ENV_YML,LT.END_YML), (LT.BEG_CONDA_ENV,LT.END),]), ] def make_block_pattern(begend:tuple[LT,LT]) -> str: (beg,end) = begend return rf"(?m:{p[beg]}\s(?P<content>({p[LT.TEXT]}\s)+?){p[end]}(?:\s)?)" def extract_content(match): return ''.join( line[2:] if line.startswith('# ') else line[1:] for line in match.group('content').splitlines(keepends=True) ) # collect all comment lines starting with "# " or equalling "#" # transforming to strip # prefix comments = open(script,'r').read() if verbose: print(f"## Parsing this script for dependencies:\n{script}") print() for (block_type, boxed_content, begend_pairs) in block_type_content_delimiters: for begend in begend_pairs: block_pattern = make_block_pattern(begend) match = re.compile(block_pattern).search(comments) if match: if verbose: print(f"### Extracted this {block_type} comment block:\n") s = '\n'.join([(line[2:] if len(line)>1 else "") for line in match.group('content').split('\n')]) print(textwrap.indent(s,'\t')) print() if block_type == 'script': (pip_env, conda_env) = parse_script_toml(extract_content(match)) boxed_pip_block[0] = pip_env boxed_conda_spec_block[0] = conda_env break else: boxed_content[0] = extract_content(match) break hash = hashlib.md5() hash.update(boxed_pip_block[0].encode('utf-8')) hash.update(boxed_conda_env_block[0].encode('utf-8')) hash.update(boxed_conda_spec_block[0].encode('utf-8')) return (hash.hexdigest(), boxed_pip_block[0], boxed_conda_env_block[0], boxed_conda_spec_block[0]) def tomlconfig_to_pip_conda(toml_config) -> tuple[str,str]: "From a TOML dict, to (pip reqs, conda python spec)" if 'requires-python' in toml_config: conda_python_install_spec = f"python{toml_config['requires-python']}" else: conda_python_install_spec = '' if 'dependencies' in toml_config: pip_reqs = '\n'.join(toml_config['dependencies']) + '\n' else: pip_reqs = '' return (pip_reqs,conda_python_install_spec) def parse_script_toml(toml_str) -> tuple[str,str]: """ From script TOML text, to (pip_reqs,conda python spec). This parses the TOML fragment in a PEP723 metadata block where TYPE=script. Uses a limited custom parser to neeed only Python 3.9.6 and zero deps. """ toml_str = re.sub(r'#.*$', '', toml_str, flags=re.MULTILINE) config = {} requires_python_match = re.search(r'requires-python\s*=\s*"([^"]*)"', toml_str) if requires_python_match: config['requires-python'] = requires_python_match.group(1) dependencies_match = re.search(r'dependencies\s*=\s*\[(.*?)\]', toml_str, re.DOTALL) if dependencies_match: dependencies_str = dependencies_match.group(1) dependencies = re.findall(r'"([^"]*)"', dependencies_str) config['dependencies'] = dependencies return tomlconfig_to_pip_conda(config) class Project(ABC): @staticmethod def make_project(script:str, verbose:bool, dry_run:bool): (dep_hash, pip_requirements, conda_envyml, conda_specs ) = parse_dependencies(script,verbose or dry_run) if conda_envyml or conda_specs: logging.info("dep block implies script will need conda for an environment.yml or conda_specs installation") return ProjectConda(script, dep_hash, pip_requirements, conda_specs, conda_envyml, verbose) elif pip_requirements: logging.info("dep block implies script will need only venv + pip") return ProjectPip(script, dep_hash, pip_requirements,conda_specs, conda_envyml, verbose) else: logging.info("no valid dep block found. no environment needed") return ProjectNoDeps(script,dep_hash, pip_requirements,conda_specs, conda_envyml, verbose) def __init__(self, script:str, dep_hash, pip_requirements:str, conda_specs:str, conda_envyml:str, verbose:bool): assert isinstance(conda_specs,str), "Bad input" self.script = script self.dep_hash = dep_hash self.pip_requirements = pip_requirements self.conda_specs = conda_specs self.conda_envyml = conda_envyml self.verbose = verbose @property def project_path(self): "path to the project dir" return os.path.join( cache_base(), self.dep_hash ) @property def envdir(self) -> str: "for pip projects, the venv dir. for conda, the prefix dir" return "" @property def interpreter(self) -> str: return os.path.join( self.envdir, 'bin','python3') def exists(self) -> bool: return False def create(self) -> bool: "False if creation failed, maybe leaving self.project_path in a non-runnable state" return True def run(self, args) -> NoReturn: run_script(self.interpreter,self.script,args) def log_level_for_verbose(v:bool) -> Log: return Log.VERBOSE if v else Log.ERRORS class ProjectPip(Project): @property def envdir(self): return os.path.join( self.project_path, 'venv' ) def exists(self): return os.path.exists( self.project_path ) def create(self): return create_venv(self.project_path, self.envdir, self.pip_requirements, log_level_for_verbose(self.verbose)) class ProjectConda(Project): @property def envdir(self): return os.path.join( self.project_path, 'condaenv' ) def exists(self): return os.path.exists( self.project_path ) def create(self): return setup_conda_prefix(self.project_path, self.envdir, self.conda_envyml, self.conda_specs, self.pip_requirements, log_level_for_verbose(self.verbose)) def run(self, args) -> NoReturn: conda_run_script(self.interpreter,self.script,args,self.envdir) class ProjectNoDeps(Project): def exists(self): return True def create(self): return True @property def interpreter(self): return sys.executable def run_with_logging(command:Union[str,list],proj_dir,out_f,err_f,verbosity): ''' Runs command. Logs and maybe streams stdout and stderr. verbosity=Log.SILENT: log out and err. Report errors later verbosity=Log.VERBOSE: log and stream out and err. ''' log_dir = os.path.join(proj_dir,"logs") os.makedirs(log_dir,exist_ok=True) out_f = os.path.join(log_dir, os.path.basename(out_f)) err_f = os.path.join(log_dir, os.path.basename(err_f)) if isinstance(command,list): command = shlex.join(command) if verbosity == Log.SILENT: command += f' 2>> "{err_f}"' command += f' 1>> "{out_f}"' elif verbosity == Log.ERRORS: command += f' 2> >(tee -a "{err_f}")' command += f' 1>> {out_f}' elif verbosity == Log.VERBOSE: command += f' 2> >(tee -a "{err_f}")' command += f' 1> >(tee -a "{out_f}")' else: assert True, "unreachable" cp = subprocess.run(command, shell=True, executable=shutil.which('bash')) did_succeed = (cp.returncode == 0) if (verbosity, did_succeed) == (Log.VERBOSE,True): print(f"## This command completed successfully:\n\t{command}") elif (verbosity, did_succeed) == (Log.VERBOSE,False): print(f"## This command failed:\n\t{command}\n", file=sys.stderr) print(f"## Standard error output was printed above\n", file=sys.stderr) print(f"## Logs may be found in:\n\t{proj_dir}/logs", file=sys.stderr) elif (verbosity, did_succeed) == (Log.ERRORS,True): pass elif (verbosity, did_succeed) == (Log.ERRORS,False): print(f"## Error encountered trying to run this command:\n\t{command}", file=sys.stderr) print(f"## Logs may be found in:\n\t{proj_dir}/logs\n", file=sys.stderr) print(f"## This is the contents of the stderr:\n") with open(err_f,"r") as f: print(f.read()) else: pass return did_succeed def create_conda_prefix(proj_dir,condaprefix_dir:str,log_level:Log): success = run_with_logging(f'conda create --quiet --yes --prefix "{condaprefix_dir}"', proj_dir, "conda_create.out","conda_create.err", log_level) if success: return True else: print("## Errors trying to create conda prefix directory",file=sys.stderr) return False def pseudo_erase_dir(path): "Pseudo-erases a project dir by moving it to the temporary dir" logging.info(f"Moving {path} to {trash_base()}") dst = os.path.join( trash_base(), os.path.basename(path), str(uuid.uuid4()) ) return shutil.move(path, dst ) def install_pip_requirements(proj_dir, pip_requirements, interpreter, log_level:Log) -> bool: reqs_path = os.path.join(proj_dir,'requirements.txt') with open(reqs_path, 'w') as f: f.write(pip_requirements) success = run_with_logging([interpreter, "-m", "pip", "install", "-r", reqs_path], proj_dir, "pip_install.out","pip_install.err", log_level) if success: with open(os.path.join(proj_dir,"piplist.txt"),"w") as f: subprocess.run(shlex.join([interpreter, "-m", "pip", "list"]), stdout=f, stderr=f, shell=True,executable=shutil.which('bash')) return True else: print("## Errors trying to install pip requirements",file=sys.stderr) return False def make_conda_install_yml_command(condaprefix_dir, env_yml_file) -> str: return f'conda env create --quiet --yes --file "{env_yml_file}" --prefix "{condaprefix_dir}"' def make_conda_install_spec_command(condaprefix_dir, install_spec_file) -> str: return f'conda install --quiet --yes --file "{install_spec_file}" --prefix "{condaprefix_dir}"' def setup_conda_prefix(proj_dir:str, condaprefix_dir:str, conda_envyml:str, conda_specs:str, pip_requirements, log_level:Log) -> bool: logging.info(f"creating conda prefix {condaprefix_dir}") create_conda_prefix(proj_dir, condaprefix_dir, log_level) success = False if conda_envyml: install_env_f = os.path.join(proj_dir,'environment.yml') with open(install_env_f, 'w') as f: f.write(conda_envyml) command_to_run = make_conda_install_yml_command(condaprefix_dir, install_env_f) success = run_with_logging(command_to_run, proj_dir, "conda_env_create_f.out","conda_env_create_f.err", log_level) elif conda_specs: install_spec_f = os.path.join(proj_dir,'conda_install_specs.txt') with open(install_spec_f, 'w') as f: f.write(conda_specs) command_to_run = make_conda_install_spec_command(condaprefix_dir, install_spec_f) success = run_with_logging(command_to_run, proj_dir, "conda_install.out","conda_install.err", log_level) else: assert True, "unreachable. " if success: with open(os.path.join(proj_dir,"exported-environment.yml"),"w") as f: cmd = ["conda","env","export","--quiet", "--prefix",condaprefix_dir] logging.info(f"exporting env with {cmd}") subprocess.run(shlex.join(cmd), stdout=f, stderr=f, shell=True,executable=shutil.which('bash')) else: print("## Errors trying to install conda dependencies",file=sys.stderr) return False if pip_requirements: interpreter = os.path.join(condaprefix_dir, 'bin','python3') return install_pip_requirements(proj_dir,pip_requirements, interpreter, log_level) else: return True def run_script(interpreter, script, args) -> NoReturn: logging.info( f"running {script} using {interpreter} with args: {args}" ) sys.stdout.flush() logging.info(f'os.execvp({interpreter}, [{interpreter},{script}] + {args})') os.execvp(interpreter, [interpreter,script] + args) def conda_run_script(interpreter, script, args, conda_env_dir) -> NoReturn: logging.info( f"using conda run to run {script} using {interpreter} with args: {args}" ) logging.info(f'os.execvp({interpreter}, [{interpreter},{script}] + {args})') # to workaround the conda bug https://github.com/conda/conda/issues/13639 should_use_wrapper = True if should_use_wrapper: workaround_path = os.path.join(conda_env_dir,'exec_script') with open(workaround_path,'w') as f: workaround_script = f"exec {interpreter} {script}" for arg in args: workaround_script += f" {arg}" workaround_script += "\n" logging.info(f'builiding script with contents: {workaround_script}') logging.info(f'writing script to path: {workaround_path}') f.write(workaround_script) os.chmod(workaround_path, 0o755) cmd = ["conda","run","-p", conda_env_dir, "--no-capture-output", workaround_path] else: cmd = ["conda","run","-p", conda_env_dir, "--no-capture-output", interpreter,script] + args sys.stdout.flush() os.execvp(cmd[0],cmd) # # venv operations # def create_venv(proj_dir, venv_dir, pip_requirements, log_level:Log) -> bool: "Creates a script project dir for script at script_path" logging.info(f"Creating venv at {venv_dir}") success = run_with_logging(["python3", "-m", "venv", venv_dir], proj_dir, "create_venv.out","creat_evenv.err", log_level) if not success: print(f"## Error trying to create venv",file=sys.stderr) return False if pip_requirements: interpreter = os.path.join(venv_dir, 'bin','python3') return install_pip_requirements(proj_dir, pip_requirements, interpreter,log_level) else: return True # # helpers # def clean_name_from_path(p): return re.sub(r'[^A-Za-z0-9-]', '', os.path.basename(p)) def print_base_dirs(): print(f"Cached project directores are in:\n{cache_base()}\n\n") print(f"Each directory's contains logs and other build artifacts.\n\n") print(f"Trashed and cleaned projects are here, waiting for disposal by the OS:\n{trash_base()}") def trash_base() -> str: "Directory to use for trashing broken project dirs" return os.path.join( tempfile.gettempdir(), "pythonrunscript" ) def print_python3_path(): if p := shutil.which('python3'): print(f"## The first python3 in your PATH: {p}") else: print("## There is no python3 in your PATH!") def cache_base(): cache_base = None if "XDG_CACHE_HOME" in os.environ: cache_base = os.environ["XDG_CACHE_HOME"] elif platform.system() == "Darwin": cache_base = os.path.join(os.path.expanduser("~"), "Library", "Caches") else: cache_base = os.path.join(os.path.expanduser("~"), ".cache") cache_base = os.path.join(cache_base, "pythonrunscript") return cache_base def are_dependencies_missing() -> bool: return (platform.system() not in ['Linux','Darwin'] and (shutil.which('bash') is None or shutil.which('tee') is None)) if __name__ == "__main__": main() |
| You are visitor 01402503 — GeezerVison does not store the pages you look up. Best viewed with Netscape Navigator 4.7 or Internet Explorer 6 at 800×600. No cookies required. |